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12311256199 = 11397167571
BaseRepresentation
bin10110111011100111…
…01101110010000111
31011202222210121120211
423131303231302013
5200203140144244
65353344540251
7614040644134
oct133563556207
934688717524
1012311256199
115248424000
122477021687
1312127a3ba8
1484b0c158b
154c0c54934
hex2ddcedc87

12311256199 has 32 divisors (see below), whose sum is σ = 13787085312. Its totient is φ = 10991059200.

The previous prime is 12311256193. The next prime is 12311256203. The reversal of 12311256199 is 99165211321.

It is not a de Polignac number, because 12311256199 - 213 = 12311248007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12311256193) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21560584 + ... + 21561154.

It is an arithmetic number, because the mean of its divisors is an integer number (430846416).

Almost surely, 212311256199 is an apocalyptic number.

12311256199 is a deficient number, since it is larger than the sum of its proper divisors (1475829113).

12311256199 is an equidigital number, since it uses as much as digits as its factorization.

12311256199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868 (or 846 counting only the distinct ones).

The product of its digits is 29160, while the sum is 40.

The spelling of 12311256199 in words is "twelve billion, three hundred eleven million, two hundred fifty-six thousand, one hundred ninety-nine".

Divisors: 1 11 97 121 167 571 1067 1331 1837 6281 11737 16199 20207 55387 69091 95357 129107 178189 222277 609257 760001 1048927 1960079 6701827 9249629 11538197 21560869 73720097 101745919 126920167 1119205109 12311256199