Base | Representation |
---|---|
bin | 10000000001110… |
… | …101000101010001 |
3 | 200202000022001202 |
4 | 100001311011101 |
5 | 1022320240100 |
6 | 42403440545 |
7 | 6443511551 |
oct | 2001650521 |
9 | 622008052 |
10 | 268915025 |
11 | 128882925 |
12 | 76086155 |
13 | 43936022 |
14 | 27a01161 |
15 | 1891d7d5 |
hex | 10075151 |
268915025 has 12 divisors (see below), whose sum is σ = 336759324. Its totient is φ = 213000000.
The previous prime is 268915021. The next prime is 268915039. The reversal of 268915025 is 520519862.
It can be written as a sum of positive squares in 6 ways, for example, as 61324561 + 207590464 = 7831^2 + 14408^2 .
It is not a de Polignac number, because 268915025 - 22 = 268915021 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 268915025.
It is not an unprimeable number, because it can be changed into a prime (268915021) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50726 + ... + 55775.
It is an arithmetic number, because the mean of its divisors is an integer number (28063277).
Almost surely, 2268915025 is an apocalyptic number.
268915025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
It is an amenable number.
268915025 is a deficient number, since it is larger than the sum of its proper divisors (67844299).
268915025 is a wasteful number, since it uses less digits than its factorization.
268915025 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 106612 (or 106607 counting only the distinct ones).
The product of its (nonzero) digits is 43200, while the sum is 38.
The square root of 268915025 is about 16398.6287536489. The cubic root of 268915025 is about 645.4635011501.
The spelling of 268915025 in words is "two hundred sixty-eight million, nine hundred fifteen thousand, twenty-five".
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