Base | Representation |
---|---|
bin | 1000100101110… |
… | …11000110111000 |
3 | 12000121111211222 |
4 | 10102323012320 |
5 | 121422211220 |
6 | 11052411212 |
7 | 1533403223 |
oct | 422730670 |
9 | 160544758 |
10 | 72069560 |
11 | 37754a22 |
12 | 20176b08 |
13 | 11c14814 |
14 | 98005ba |
15 | 64d8e25 |
hex | 44bb1b8 |
72069560 has 32 divisors (see below), whose sum is σ = 163771200. Its totient is φ = 28540800.
The previous prime is 72069533. The next prime is 72069581. The reversal of 72069560 is 6596027.
It is a self number, because there is not a number n which added to its sum of digits gives 72069560.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4880 + ... + 12959.
It is an arithmetic number, because the mean of its divisors is an integer number (5117850).
Almost surely, 272069560 is an apocalyptic number.
It is an amenable number.
72069560 is an abundant number, since it is smaller than the sum of its proper divisors (91701640).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
72069560 is a wasteful number, since it uses less digits than its factorization.
72069560 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 17951 (or 17947 counting only the distinct ones).
The product of its (nonzero) digits is 22680, while the sum is 35.
The square root of 72069560 is about 8489.3792470357. The cubic root of 72069560 is about 416.1506942955.
The spelling of 72069560 in words is "seventy-two million, sixty-nine thousand, five hundred sixty".
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