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25135684 = 227897703
BaseRepresentation
bin101111111100…
…0101001000100
31202022000200021
41133320221010
522413320214
62254424524
7423435610
oct137705104
952260607
1025135684
11132088a2
128502144
135290bb2
1434a4340
152317924
hex17f8a44

25135684 has 12 divisors (see below), whose sum is σ = 50271424. Its totient is φ = 10772424.

The previous prime is 25135681. The next prime is 25135687. The reversal of 25135684 is 48653152.

It is an interprime number because it is at equal distance from previous prime (25135681) and next prime (25135687).

25135684 is an admirable number.

It is a super-2 number, since 2×251356842 = 1263605220295712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25135681) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 448824 + ... + 448879.

Almost surely, 225135684 is an apocalyptic number.

It is an amenable number.

25135684 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

25135684 is a wasteful number, since it uses less digits than its factorization.

25135684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 897714 (or 897712 counting only the distinct ones).

The product of its digits is 28800, while the sum is 34.

The square root of 25135684 is about 5013.5500396426. The cubic root of 25135684 is about 292.9298095873.

The spelling of 25135684 in words is "twenty-five million, one hundred thirty-five thousand, six hundred eighty-four".

Divisors: 1 2 4 7 14 28 897703 1795406 3590812 6283921 12567842 25135684