Selected Numbers
- 70000 – round number
- 71656 – pentagonal pyramidal number
- 73712 – number of n-Queens Problem solutions for n = 13,
- 74205 – registry number of the USS Defiant on Star Trek: Deep Space Nine
- 74656 – registry number of the USS Voyager on Star Trek: Voyager
- 75025 – Fibonacci number, Markov number
- 75361 – Carmichael number
- 76084 – amicable number with 63020
- 76176 – sum of the cubes of the first 23 positive integers 2762
- 76424 – tetranacci number
- 77778 – Kaprekar number
- 78125 –
- 78557 – conjectured to be the smallest Sierpinski number
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