Base | Representation |
---|---|
bin | 100001110111000100… |
… | …1111101011100101001 |
3 | 20221200122020001001100 |
4 | 1003232021331130221 |
5 | 2142410024041004 |
6 | 53223240112013 |
7 | 5152642566300 |
oct | 1035611753451 |
9 | 227618201040 |
10 | 72715065129 |
11 | 28924838753 |
12 | 12114165609 |
13 | 6b1aaa7275 |
14 | 373b44b437 |
15 | 1d58b6e739 |
hex | 10ee27d729 |
72715065129 has 72 divisors (see below), whose sum is σ = 130792428000. Its totient is φ = 38697087744.
The previous prime is 72715065121. The next prime is 72715065139. The reversal of 72715065129 is 92156051727.
72715065129 is a `hidden beast` number, since 7 + 2 + 71 + 506 + 51 + 29 = 666.
It is not a de Polignac number, because 72715065129 - 23 = 72715065121 is a prime.
It is not an unprimeable number, because it can be changed into a prime (72715065121) by changing a digit.
It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 420817 + ... + 567905.
It is an arithmetic number, because the mean of its divisors is an integer number (1816561500).
Almost surely, 272715065129 is an apocalyptic number.
It is an amenable number.
72715065129 is a deficient number, since it is larger than the sum of its proper divisors (58077362871).
72715065129 is a wasteful number, since it uses less digits than its factorization.
72715065129 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 147187 (or 147177 counting only the distinct ones).
The product of its (nonzero) digits is 264600, while the sum is 45.
The spelling of 72715065129 in words is "seventy-two billion, seven hundred fifteen million, sixty-five thousand, one hundred twenty-nine".
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