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25713896 = 2313247249
BaseRepresentation
bin110001000010…
…1110011101000
31210101101211112
41202011303220
523040321041
62315045452
7431364425
oct142056350
953341745
1025713896
111357325a
128740888
135434130
1435b4d4c
1523cddeb
hex1885ce8

25713896 has 16 divisors (see below), whose sum is σ = 51922500. Its totient is φ = 11867904.

The previous prime is 25713869. The next prime is 25713901. The reversal of 25713896 is 69831752.

It can be written as a sum of positive squares in 2 ways, for example, as 18369796 + 7344100 = 4286^2 + 2710^2 .

It is a super-2 number, since 2×257138962 = 1322408894997632, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123521 + ... + 123728.

Almost surely, 225713896 is an apocalyptic number.

25713896 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

25713896 is an abundant number, since it is smaller than the sum of its proper divisors (26208604).

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

25713896 is a wasteful number, since it uses less digits than its factorization.

25713896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247268 (or 247264 counting only the distinct ones).

The product of its digits is 90720, while the sum is 41.

The square root of 25713896 is about 5070.8871018787. The cubic root of 25713896 is about 295.1589529275.

The spelling of 25713896 in words is "twenty-five million, seven hundred thirteen thousand, eight hundred ninety-six".

Divisors: 1 2 4 8 13 26 52 104 247249 494498 988996 1977992 3214237 6428474 12856948 25713896