Base | Representation |
---|---|
bin | 100001110000010001… |
… | …1101110010101010010 |
3 | 20221002201221222101010 |
4 | 1003200203232111102 |
5 | 2141423124003223 |
6 | 53144450351350 |
7 | 5144202543402 |
oct | 1034043562522 |
9 | 227081858333 |
10 | 72486937938 |
11 | 28817a94388 |
12 | 1206b88b556 |
13 | 6ab275256c |
14 | 3719026802 |
15 | 1d43b0b393 |
hex | 10e08ee552 |
72486937938 has 32 divisors (see below), whose sum is σ = 147620283840. Its totient is φ = 23722695360.
The previous prime is 72486937933. The next prime is 72486937979. The reversal of 72486937938 is 83973968427.
It is a super-3 number, since 3×724869379383 (a number of 34 digits) contains 333 as substring.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (72486937933) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19168 + ... + 381236.
It is an arithmetic number, because the mean of its divisors is an integer number (4613133870).
Almost surely, 272486937938 is an apocalyptic number.
72486937938 is an abundant number, since it is smaller than the sum of its proper divisors (75133345902).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
72486937938 is a wasteful number, since it uses less digits than its factorization.
72486937938 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 362682.
The product of its digits is 109734912, while the sum is 66.
The spelling of 72486937938 in words is "seventy-two billion, four hundred eighty-six million, nine hundred thirty-seven thousand, nine hundred thirty-eight".
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