Base | Representation |
---|---|
bin | 110000110101… |
… | …1010001001011 |
3 | 1210011212201120 |
4 | 1201223101023 |
5 | 23023331240 |
6 | 2312450323 |
7 | 430432500 |
oct | 141532113 |
9 | 53155646 |
10 | 25605195 |
11 | 134a9620 |
12 | 86a99a3 |
13 | 53c6805 |
14 | 35874a7 |
15 | 23abad0 |
hex | 186b44b |
25605195 has 48 divisors (see below), whose sum is σ = 52005888. Its totient is φ = 10637760.
The previous prime is 25605169. The next prime is 25605199. The reversal of 25605195 is 59150652.
It is not a de Polignac number, because 25605195 - 27 = 25605067 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (33).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (25605199) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6502 + ... + 9668.
It is an arithmetic number, because the mean of its divisors is an integer number (1083456).
Almost surely, 225605195 is an apocalyptic number.
25605195 is an abundant number, since it is smaller than the sum of its proper divisors (26400693).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
25605195 is a wasteful number, since it uses less digits than its factorization.
25605195 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3200 (or 3193 counting only the distinct ones).
The product of its (nonzero) digits is 13500, while the sum is 33.
The square root of 25605195 is about 5060.1576062411. The cubic root of 25605195 is about 294.7424545258.
The spelling of 25605195 in words is "twenty-five million, six hundred five thousand, one hundred ninety-five".
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