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25426230472 = 23172916339551
BaseRepresentation
bin10111101011100001…
…010111110011001000
32102121222221100002201
4113223201113303020
5404033103333342
615403004205544
71560041251546
oct275341276310
972558840081
1025426230472
11a868498315
124b172398b4
1325229300b6
141332c18d96
159dc317db7
hex5eb857cc8

25426230472 has 64 divisors (see below), whose sum is σ = 52540876800. Its totient is φ = 11481523200.

The previous prime is 25426230461. The next prime is 25426230497. The reversal of 25426230472 is 27403262452.

It is a happy number.

It is a super-2 number, since 2×254262304722 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 623097 + ... + 662647.

It is an arithmetic number, because the mean of its divisors is an integer number (820951200).

Almost surely, 225426230472 is an apocalyptic number.

It is an amenable number.

25426230472 is an abundant number, since it is smaller than the sum of its proper divisors (27114646328).

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

25426230472 is a wasteful number, since it uses less digits than its factorization.

25426230472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39766 (or 39762 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 37.

The spelling of 25426230472 in words is "twenty-five billion, four hundred twenty-six million, two hundred thirty thousand, four hundred seventy-two".

Divisors: 1 2 4 8 17 29 34 58 68 116 136 163 232 326 493 652 986 1304 1972 2771 3944 4727 5542 9454 11084 18908 22168 37816 39551 79102 80359 158204 160718 316408 321436 642872 672367 1146979 1344734 2293958 2689468 4587916 5378936 6446813 9175832 12893626 19498643 25787252 38997286 51574504 77994572 109595821 155989144 186957577 219191642 373915154 438383284 747830308 876766568 1495660616 3178278809 6356557618 12713115236 25426230472