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25130004 = 2232094167
BaseRepresentation
bin101111111011…
…1010000010100
31202021201212220
41133313100110
522413130004
62254342340
7423413214
oct137672024
952251786
1025130004
11132045a9
1284ba9b0
13528b433
1434a2244
152315dd9
hex17f7414

25130004 has 12 divisors (see below), whose sum is σ = 58636704. Its totient is φ = 8376664.

The previous prime is 25129999. The next prime is 25130011. The reversal of 25130004 is 40003152.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1047072 + ... + 1047095.

It is an arithmetic number, because the mean of its divisors is an integer number (4886392).

Almost surely, 225130004 is an apocalyptic number.

It is an amenable number.

25130004 is an abundant number, since it is smaller than the sum of its proper divisors (33506700).

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

25130004 is a wasteful number, since it uses less digits than its factorization.

25130004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2094174 (or 2094172 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 25130004 is about 5012.9835427617. The cubic root of 25130004 is about 292.9077431278.

Adding to 25130004 its reverse (40003152), we get a palindrome (65133156).

The spelling of 25130004 in words is "twenty-five million, one hundred thirty thousand, four".

Divisors: 1 2 3 4 6 12 2094167 4188334 6282501 8376668 12565002 25130004