70,000 (seventy thousand) is the natural number that comes after 69,999 and before 70,001. It is a round number.

Selected numbers in the range 70001–79999

70001 to 70999

71000 to 71999

* 71656 = pentagonal pyramidal number

72000 to 72999

73000 to 73999

* 73296 = is the smallest number ''n'', for which ''n''−3, ''n''−2, ''n''−1, ''n''+1, ''n''+2, ''n''+3 are all Sphenic number. * 73440 = 15 × 16 × 17 × 18 * 73712 = number of ''n''-Queens Problem solutions for ''n'' = 13 * 73728 = 3- smooth number

74000 to 74999

* 74088 = 42³ * 74205 = registry number of the USS Defiant on ''

Star Trek: Deep Space Nine ''Star Trek: Deep Space Nine'' (abbreviated as ''DS9'') is an American science fiction television series created by Rick Berman and Michael Piller. The fourth series in the ''Star Trek'' media franchise, it originally aired in syndication from ...

'' * 74353 = Friedman prime * 74656 = registry number of the USS Voyager on '' Star Trek: Voyager'' * 74897 = Friedman prime

75000 to 75999

* 75025 = Fibonacci number, Markov number * 75361 = Carmichael number

76000 to 76999

* 76084 = amicable number with 63020 * 76424 = tetranacci number

77000 to 77999

* 77777 = repdigit * 77778 = Kaprekar number

78000 to 78999

* 78125 = 5⁷ * 78163 = Friedman prime * 78498 = the number of primes under 1,000,000 * 78557 = conjectured to be the smallest

Sierpiński number In number theory, a Sierpiński number is an odd natural number ''k'' such that k \times 2^n + 1 is composite for all natural numbers ''n''. In 1960, Wacław Sierpiński proved that there are infinitely many odd integers ''k'' which have this pro ...

* 78732 = 3- smooth number

79000 to 79999

* 79507 = 43³

References

{{Integers, 10 70000