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25757868 = 2232146489
BaseRepresentation
bin110001001000…
…0100010101100
31210110122011010
41202100202230
523043222433
62320025220
7431636553
oct142204254
953418133
1025757868
11135a32a4
128762210
13544b156
1435c6d9a
1523dbe63
hex18908ac

25757868 has 12 divisors (see below), whose sum is σ = 60101720. Its totient is φ = 8585952.

The previous prime is 25757843. The next prime is 25757909. The reversal of 25757868 is 86875752.

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

It is a nialpdrome in base 12.

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, 1073233 + ... + 1073256.

Almost surely, 225757868 is an apocalyptic number.

It is an amenable number.

25757868 is an abundant number, since it is smaller than the sum of its proper divisors (34343852).

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

25757868 is a wasteful number, since it uses less digits than its factorization.

25757868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2146496 (or 2146494 counting only the distinct ones).

The product of its digits is 940800, while the sum is 48.

The square root of 25757868 is about 5075.2209804106. The cubic root of 25757868 is about 295.3271024553.

The spelling of 25757868 in words is "twenty-five million, seven hundred fifty-seven thousand, eight hundred sixty-eight".

Divisors: 1 2 3 4 6 12 2146489 4292978 6439467 8585956 12878934 25757868