Base | Representation |
---|---|
bin | 1111100000001… |
… | …1010000110000 |
3 | 11112100121122000 |
4 | 3320003100300 |
5 | 113121300242 |
6 | 10241414000 |
7 | 1416463320 |
oct | 370032060 |
9 | 145317560 |
10 | 65025072 |
11 | 33783332 |
12 | 1993a300 |
13 | 10619298 |
14 | 88c9280 |
15 | 5a96a4c |
hex | 3e03430 |
65025072 has 80 divisors (see below), whose sum is σ = 213319680. Its totient is φ = 18577728.
The previous prime is 65025067. The next prime is 65025089. The reversal of 65025072 is 27052056.
65025072 is a `hidden beast` number, since 650 + 2 + 5 + 0 + 7 + 2 = 666.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7728 + ... + 13775.
It is an arithmetic number, because the mean of its divisors is an integer number (2666496).
Almost surely, 265025072 is an apocalyptic number.
It is an amenable number.
65025072 is an abundant number, since it is smaller than the sum of its proper divisors (148294608).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
65025072 is a wasteful number, since it uses less digits than its factorization.
65025072 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 21527 (or 21515 counting only the distinct ones).
The product of its (nonzero) digits is 4200, while the sum is 27.
The square root of 65025072 is about 8063.8124978201. The cubic root of 65025072 is about 402.1242654372.
The spelling of 65025072 in words is "sixty-five million, twenty-five thousand, seventy-two".
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