Base | Representation |
---|---|
bin | 1000101001100… |
… | …11000101001010 |
3 | 12001112110221100 |
4 | 10110303011022 |
5 | 122033422340 |
6 | 11111122230 |
7 | 1540521006 |
oct | 424630512 |
9 | 161473840 |
10 | 72560970 |
11 | 37a60149 |
12 | 20373376 |
13 | 120573b1 |
14 | 98cb706 |
15 | 6584830 |
hex | 453314a |
72560970 has 24 divisors (see below), whose sum is σ = 188658756. Its totient is φ = 19349568.
The previous prime is 72560953. The next prime is 72560977. The reversal of 72560970 is 7906527.
72560970 is a `hidden beast` number, since 7 + 2 + 560 + 97 + 0 = 666.
It can be written as a sum of positive squares in 2 ways, for example, as 70408881 + 2152089 = 8391^2 + 1467^2 .
It is not an unprimeable number, because it can be changed into a prime (72560977) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 403027 + ... + 403206.
Almost surely, 272560970 is an apocalyptic number.
72560970 is an abundant number, since it is smaller than the sum of its proper divisors (116097786).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
72560970 is a wasteful number, since it uses less digits than its factorization.
72560970 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 806246 (or 806243 counting only the distinct ones).
The product of its (nonzero) digits is 26460, while the sum is 36.
The square root of 72560970 is about 8518.2727122346. The cubic root of 72560970 is about 417.0944009317.
The spelling of 72560970 in words is "seventy-two million, five hundred sixty thousand, nine hundred seventy".
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