30,000

30,000 (thirty thousand) is the natural number that comes after 29,999 and before 30,001.

← 29999 30000 30001 →
List of numbers — Integers ← 0 [[{{#expr:{{{1}}}*{{{factor}}}*1000}} (number)|{{#ifeq:{{{1}}}|10|→|{{#expr:{{{1}}}*{{{factor}}}}}k}}]] [[{{#expr:{{{1}}}*{{{factor}}}*1000}} (number)|{{#ifeq:{{{1}}}|10|→|{{#expr:{{{1}}}*{{{factor}}}}}k}}]] [[{{#expr:{{{1}}}*{{{factor}}}*1000}} (number)|{{#ifeq:{{{1}}}|10|→|{{#expr:{{{1}}}*{{{factor}}}}}k}}]] [[{{#expr:{{{1}}}*{{{factor}}}*1000}} (number)|{{#ifeq:{{{1}}}|10|→|{{#expr:{{{1}}}*{{{factor}}}}}k}}]] [[{{#expr:{{{1}}}*{{{factor}}}*1000}} (number)|{{#ifeq:{{{1}}}|10|→|{{#expr:{{{1}}}*{{{factor}}}}}k}}]] [[{{#expr:{{{1}}}*{{{factor}}}*1000}} (number)|{{#ifeq:{{{1}}}|10|→|{{#expr:{{{1}}}*{{{factor}}}}}k}}]] [[{{#expr:{{{1}}}*{{{factor}}}*1000}} (number)|{{#ifeq:{{{1}}}|10|→|{{#expr:{{{1}}}*{{{factor}}}}}k}}]] [[{{#expr:{{{1}}}*{{{factor}}}*1000}} (number)|{{#ifeq:{{{1}}}|10|→|{{#expr:{{{1}}}*{{{factor}}}}}k}}]] [[{{#expr:{{{1}}}*{{{factor}}}*1000}} (number)|{{#ifeq:{{{1}}}|10|→|{{#expr:{{{1}}}*{{{factor}}}}}k}}]] [[{{#expr:{{{1}}}*{{{factor}}}*1000}} (number)|{{#ifeq:{{{1}}}|10|→|{{#expr:{{{1}}}*{{{factor}}}}}k}}]]
Cardinal	thirty thousand
Ordinal	30000th (thirty thousandth)
Factorization	2^4 × 3 × 5^4
Greek numeral	${\displaystyle {\stackrel {\gamma }{\mathrm {M} }}}$
Roman numeral	XXX
Binary	1110101001100002
Ternary	11120110103
Quaternary	131103004
Quinary	14300005
Senary	3505206
Octal	724608
Duodecimal	1544012
Hexadecimal	753016
Vigesimal	3F0020
Base 36	N5C36

Selected numbers in the range 30001–39999

30001 to 30999

• 30029 – primorial prime
• 30030 – primorial[1]
• 30203 – safe prime
• 30240 – harmonic divisor number[2]
• 30323 – Sophie Germain prime and safe prime
• 30420 – pentagonal pyramidal number[3]
• 30694 – open meandric number
• 30941 – first base 13 repunit prime

31000 to 31999

• 31116 – octahedral number[4]
• 31337 – cousin prime, pronounced elite, an alternate way to spell 1337, an obfuscated alphabet made with numbers and punctuation, known and used in the gamer, hacker and BBS cultures.
• 31395 – square pyramidal number
• 31397 – prime number followed by a record prime gap of 72, the first above 52[5]
• 31721 – start of a prime quadruplet[6]
• 31929 – Zeisel number[7]

32000 to 32999

• 32043 – smallest number whose square is pandigital.
• 32045 – can be expressed as a sum of two squares in more ways than any smaller number[8]
• 32760 – harmonic divisor number[2]
• 32761 – 181², centered hexagonal number
• 32767 – 2¹⁵ − 1, largest positive value for a signed (two's complement) 16-bit integer on a computer.
• 32768 – 2¹⁵, maximum absolute value of a negative value for a signed (two's complement) 16-bit integer on a computer.
• 32800 – pentagonal pyramidal number[3]
• 32993 – Leyland number[9]

33000 to 33999

• 33333 – repdigit
• 33461 – Pell number,[10] Markov number[11]
• 33511 – square pyramidal number
• 33781 – octahedral number[4]

34000 to 34999

• 34560 – 5 superfactorial[12]
• 34841 – start of a prime quadruplet[6]
• 34969 – favorite number of the Muppet character Count von Count [13]

35000 to 35999

• 35720 – square pyramidal number
• 35840 – number of ounces in a long ton (2,240 pounds)
• 35890 – tribonacci number[14]
• 35899 – alternating factorial[15]
• 35937 – 33³, chiliagonal number[16]
• 35964 – digit-reassembly number

36000 to 36999

• 36100 – sum of the cubes of the first 19 positive integers
• 36594 – octahedral number[4]

37000 to 37999

• 37378 – semi-meandric number[17]
• 37634 – third term of the Lucas–Lehmer sequence
• 37666 – Markov number[11]
• 37926 – pentagonal pyramidal number[3]

38000 to 38999

• 38024 – square pyramidal number
• 38416 – 14⁴
• 38962 – Kaprekar number[18]

39000 to 39999

• 39304 – 34³
• 39559 – octahedral number[4]
• 39648 – tetranacci n[19]

References

1. "Sloane's A002110 : Primorial numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-15.
2. "Sloane's A001599 : Harmonic or Ore numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-15.
3. "Sloane's A002411 : Pentagonal pyramidal numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-15.
4. "Sloane's A005900 : Octahedral numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-15.
5. Weisstein, Eric W. "Prime Gaps". MathWorld.
6. Sloane, N. J. A. (ed.). "Sequence A007530". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
7. "Sloane's A051015 : Zeisel numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-15.
8. Sloane, N. J. A. (ed.). "Sequence A088959". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
9. "Sloane's A076980 : Leyland numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-15.
10. "Sloane's A000129 : Pell numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-15.
11. "Sloane's A002559 : Markoff (or Markov) numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-15.
12. "Sloane's A000178 : Superfactorials". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-15.
13. "Why was 34,969 Count von Count's magic number?". BBC News. 2012-08-30. Retrieved 2012-08-31.
14. "Sloane's A000073 : Tribonacci numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-15.
15. "Sloane's A005165 : Alternating factorials". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-15.
16. "Sloane's A195163 : 1000-gonal numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-15.
17. "Sloane's A000682 : Semimeanders". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-15.
18. "Sloane's A006886 : Kaprekar numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-15.
19. "Sloane's A000078 : Tetranacci numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-15.