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25376803968 = 273191345997
BaseRepresentation
bin10111101000100100…
…110100110010000000
32102111112221012200110
4113220210310302000
5403432430211333
615354040551320
71555601163135
oct275044646200
972445835613
1025376803968
11a8425a946a
124b02782540
132515615a49
14132a43058c
159d7d03063
hex5e8934c80

25376803968 has 64 divisors (see below), whose sum is σ = 67760248320. Its totient is φ = 8414622720.

The previous prime is 25376803967. The next prime is 25376804017. The reversal of 25376803968 is 86930867352.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (25376803961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99655 + ... + 246342.

It is an arithmetic number, because the mean of its divisors is an integer number (1058753880).

Almost surely, 225376803968 is an apocalyptic number.

It is an amenable number.

25376803968 is an abundant number, since it is smaller than the sum of its proper divisors (42383444352).

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

25376803968 is a wasteful number, since it uses less digits than its factorization.

25376803968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346205 (or 346193 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 57.

The spelling of 25376803968 in words is "twenty-five billion, three hundred seventy-six million, eight hundred three thousand, nine hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 128 191 192 382 384 573 764 1146 1528 2292 3056 4584 6112 9168 12224 18336 24448 36672 73344 345997 691994 1037991 1383988 2075982 2767976 4151964 5535952 8303928 11071904 16607856 22143808 33215712 44287616 66085427 66431424 132170854 132862848 198256281 264341708 396512562 528683416 793025124 1057366832 1586050248 2114733664 3172100496 4229467328 6344200992 8458934656 12688401984 25376803968