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12313944257 = 127499194309
BaseRepresentation
bin10110111011111011…
…11110000011000001
31011210011212011220112
423131331332003001
5200204332204012
65353522321105
7614102541056
oct133575760301
934704764815
1012313944257
11524999a63a
122477ab9195
131213205564
1484b5c102d
154c10d6122
hex2ddf7e0c1

12313944257 has 8 divisors (see below), whose sum is σ = 12435840000. Its totient is φ = 12192438384.

The previous prime is 12313944241. The next prime is 12313944277. The reversal of 12313944257 is 75244931321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12313944257 - 24 = 12313944241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12313944277) 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, 33782 + ... + 160527.

It is an arithmetic number, because the mean of its divisors is an integer number (1554480000).

Almost surely, 212313944257 is an apocalyptic number.

It is an amenable number.

12313944257 is a deficient number, since it is larger than the sum of its proper divisors (121895743).

12313944257 is a wasteful number, since it uses less digits than its factorization.

12313944257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194935.

The product of its digits is 181440, while the sum is 41.

The spelling of 12313944257 in words is "twelve billion, three hundred thirteen million, nine hundred forty-four thousand, two hundred fifty-seven".

Divisors: 1 127 499 63373 194309 24677243 96960191 12313944257