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25133164 = 2274121893
BaseRepresentation
bin101111111100…
…0000001101100
31202021220012221
41133320001230
522413230124
62254405124
7423425350
oct137700154
952256187
1025133164
1113206a11
1285007a4
13528c9c4
1434a3460
152316ce4
hex17f806c

25133164 has 24 divisors (see below), whose sum is σ = 51494688. Its totient is φ = 10508160.

The previous prime is 25133131. The next prime is 25133177. The reversal of 25133164 is 46133152.

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, 9799 + ... + 12094.

It is an arithmetic number, because the mean of its divisors is an integer number (2145612).

Almost surely, 225133164 is an apocalyptic number.

It is an amenable number.

25133164 is an abundant number, since it is smaller than the sum of its proper divisors (26361524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25133164 is a wasteful number, since it uses less digits than its factorization.

25133164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21945 (or 21943 counting only the distinct ones).

The product of its digits is 2160, while the sum is 25.

The square root of 25133164 is about 5013.2987144195. The cubic root of 25133164 is about 292.9200199487.

The spelling of 25133164 in words is "twenty-five million, one hundred thirty-three thousand, one hundred sixty-four".

Divisors: 1 2 4 7 14 28 41 82 164 287 574 1148 21893 43786 87572 153251 306502 613004 897613 1795226 3590452 6283291 12566582 25133164