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25134087868 = 2231202694257
BaseRepresentation
bin10111011010000110…
…111011111010111100
32101212122012221210021
4113122012323322330
5402433311302433
615314010421524
71546563136051
oct273206737274
971778187707
1025134087868
11a7285a024a
124a554318a4
1324a7253856
1413060cd028
159c185c22d
hex5da1bbebc

25134087868 has 12 divisors (see below), whose sum is σ = 45403513792. Its totient is φ = 12161655360.

The previous prime is 25134087841. The next prime is 25134087877. The reversal of 25134087868 is 86878043152.

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, 101347005 + ... + 101347252.

Almost surely, 225134087868 is an apocalyptic number.

It is an amenable number.

25134087868 is a deficient number, since it is larger than the sum of its proper divisors (20269425924).

25134087868 is a wasteful number, since it uses less digits than its factorization.

25134087868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202694292 (or 202694290 counting only the distinct ones).

The product of its (nonzero) digits is 2580480, while the sum is 52.

The spelling of 25134087868 in words is "twenty-five billion, one hundred thirty-four million, eighty-seven thousand, eight hundred sixty-eight".

Divisors: 1 2 4 31 62 124 202694257 405388514 810777028 6283521967 12567043934 25134087868