8000 (number)

8000 (eight thousand) is the natural number following 7999 and preceding 8001.

← 7999 8000 8001 →
← 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}}]]
Cardinaleight thousand
Ordinal8000th
(eight thousandth)
Factorization26 × 53
Greek numeral,Η´
Roman numeralVMMM, or VIII
Unicode symbol(s)VMMM, vmmm, VIII, viii
Binary11111010000002
Ternary1012220223
Quaternary13310004
Quinary2240005
Senary1010126
Octal175008
Duodecimal476812
Hexadecimal1F4016
Vigesimal100020
Base 3666836

8000 is the cube of 20, as well as the sum of four consecutive integers cubed, 113 + 123 + 133 + 143.

The fourteen tallest mountains on Earth, which exceed 8000 meters in height, are sometimes referred to as eight-thousanders.[1]

Selected numbers in the range 8001–8999

8001 to 8099
  • 8001 – triangular number
  • 8002 – Mertens function zero
  • 8011 – Mertens function zero, super-prime
  • 8012 – Mertens function zero
  • 8017 – Mertens function zero
  • 8021 – Mertens function zero
  • 8039 – safe prime
  • 8059 – super-prime
  • 8069 – Sophie Germain prime
  • 8093 – Sophie Germain prime

8100 to 8199

8200 to 8299

8300 to 8399

8400 to 8499

8500 to 8599

8600 to 8699
  • 8625 – enneagonal number
  • 8646 – triangular number
  • 8649 – 932, centered octagonal number
  • 8658 - sum of the first four perfect numbers (6, 28, 496, 8128) and the product of the culturally significant 666 and 13
  • 8663 – Sophie Germain prime
  • 8693 – Sophie Germain prime
  • 8695 – decagonal number
  • 8699 – safe prime

8700 to 8799
  • 8712 – smallest number that is divisible by its reverse: 8712 = 4 × 2178 (excluding palindromes and numbers with trailing zeros)
  • 8713 – balanced prime
  • 8719 – super-prime
  • 8741 – Sophie Germain prime
  • 8747 – safe prime, balanced prime, super-prime
  • 8751 – perfect totient number[11]
  • 8760 - the number of hours in a non-leap year; 365 × 24
  • 8761 – super-prime
  • 8778 – triangular number
  • 8783 – safe prime
  • 8784 - the number of hours in a leap year; 366 × 24

8800 to 8899
  • 8801 – magic constant of n × n normal magic square and n-Queens Problem for n = 26.
  • 8807 – super-prime, sum of eleven consecutive primes (761 + 769 + 773 + 787 + 797 + 809 + 811 + 821 + 823 + 827 + 829)
  • 8819 – safe prime
  • 8833 – 882 + 332
  • 8836 – 942
  • 8839 – sum of twenty-three consecutive primes (313 + 317 + 331 + 337 + 347 + 349 + 353 + 359 + 367 + 373 + 379 + 383 + 389 + 397 + 401 + 409 + 419 + 421 + 431 + 433 + 439 + 443 + 449)
  • 8849 – super-prime
  • 8855 – member of a Ruth-Aaron pair (first definition) with 8856
  • 8856 – member of a Ruth-Aaron pair (first definition) with 8855

8900 to 8999
  • 8911 – Carmichael number,[12] triangular number
  • 8923 – super-prime
  • 8926 – centered heptagonal number
  • 8944 – sum of the cubes of the first seven primes
  • 8951 – Sophie Germain prime
  • 8963 – safe prime
  • 8969 – Sophie Germain prime
  • 8976 – enneagonal number
  • 8999 – super-prime
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References
  1. Voiland, Adam (16 December 2013). "The Eight-Thousanders". The Earth Observatory. NASA. Retrieved 12 September 2016.
  2. "Sloane's A005900 : Octahedral numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-14.
  3. "Sloane's A002411 : Pentagonal pyramidal numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-14.
  4. "Sloane's A005188 : Armstrong (or Plus Perfect, or narcissistic) numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-14.
  5. "Sloane's A002407 : Cuban primes". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-14.
  6. "Sloane's A050217 : Super-Poulet numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-14.
  7. "Sloane's A001107 : 10-gonal (or decagonal) numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-14.
  8. "Sloane's A076980 : Leyland numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-14.
  9. "Sloane's A000292 : Tetrahedral numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-14.
  10. "Sloane's A000330 : Square pyramidal numbers". The On-LIne Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-14.
  11. "Sloane's A082897 : Perfect totient numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-14.
  12. "Sloane's A002997 : Carmichael numbers". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation. Retrieved 2016-06-14.
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