Base | Representation |
---|---|
bin | 100001101110011101… |
… | …0101111011001000000 |
3 | 20220221111001000221000 |
4 | 1003130322233121000 |
5 | 2141312010101340 |
6 | 53134425332000 |
7 | 5142531450501 |
oct | 1033472573100 |
9 | 226844030830 |
10 | 72425862720 |
11 | 287965696a2 |
12 | 12053337000 |
13 | 6aa2bba093 |
14 | 3710c88ba8 |
15 | 1d3d594d30 |
hex | 10dceaf640 |
72425862720 has 112 divisors (see below), whose sum is σ = 255502379520. Its totient is φ = 19313561088.
The previous prime is 72425862703. The next prime is 72425862721. The reversal of 72425862720 is 2726852427.
72425862720 is a `hidden beast` number, since 7 + 2 + 42 + 586 + 2 + 7 + 20 = 666.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is not an unprimeable number, because it can be changed into a prime (72425862721) 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, 4182672 + ... + 4199951.
Almost surely, 272425862720 is an apocalyptic number.
It is an amenable number.
72425862720 is an abundant number, since it is smaller than the sum of its proper divisors (183076516800).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
72425862720 is a wasteful number, since it uses less digits than its factorization.
72425862720 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 8382649 (or 8382633 counting only the distinct ones).
The product of its (nonzero) digits is 752640, while the sum is 45.
The spelling of 72425862720 in words is "seventy-two billion, four hundred twenty-five million, eight hundred sixty-two thousand, seven hundred twenty".
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