Base | Representation |
---|---|
bin | 100001111000001001… |
… | …0001000010100101000 |
3 | 20221210010101120221010 |
4 | 1003300102020110220 |
5 | 2142443143330011 |
6 | 53230553143520 |
7 | 5153555160525 |
oct | 1036022102450 |
9 | 227703346833 |
10 | 72750761256 |
11 | 289429a9788 |
12 | 121240baba0 |
13 | 6b252c4b34 |
14 | 37420a014c |
15 | 1d5bd711a6 |
hex | 10f0488528 |
72750761256 has 32 divisors (see below), whose sum is σ = 183751928640. Its totient is φ = 24000250368.
The previous prime is 72750761249. The next prime is 72750761257. The reversal of 72750761256 is 65216705727.
It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.
It is not an unprimeable number, because it can be changed into a prime (72750761257) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15622836 + ... + 15627491.
It is an arithmetic number, because the mean of its divisors is an integer number (5742247770).
Almost surely, 272750761256 is an apocalyptic number.
It is an amenable number.
72750761256 is an abundant number, since it is smaller than the sum of its proper divisors (111001167384).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
72750761256 is a wasteful number, since it uses less digits than its factorization.
72750761256 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 31250433 (or 31250429 counting only the distinct ones).
The product of its (nonzero) digits is 1234800, while the sum is 48.
The spelling of 72750761256 in words is "seventy-two billion, seven hundred fifty million, seven hundred sixty-one thousand, two hundred fifty-six".
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