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252951661196 = 221343877128993
BaseRepresentation
bin1110101110010100011…
…0000000101010001100
3220011220122011210002022
43223211012000222030
513121021111124241
6312112051545312
724163243433663
oct3534506005214
9804818153068
10252951661196
1198304688a73
1241034bbb238
131ab1274a190
14c358833dda
1568a701054b
hex3ae5180a8c

252951661196 has 48 divisors (see below), whose sum is σ = 488363028384. Its totient is φ = 113900967936.

The previous prime is 252951661187. The next prime is 252951661231. The reversal of 252951661196 is 691166159252.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1896476 + ... + 2025468.

It is an arithmetic number, because the mean of its divisors is an integer number (10174229758).

Almost surely, 2252951661196 is an apocalyptic number.

252951661196 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

252951661196 is a deficient number, since it is larger than the sum of its proper divisors (235411367188).

252951661196 is a wasteful number, since it uses less digits than its factorization.

252951661196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129930 (or 129928 counting only the distinct ones).

The product of its digits is 1749600, while the sum is 53.

Adding to 252951661196 its sum of digits (53), we get a square (252951661249 = 5029432).

The spelling of 252951661196 in words is "two hundred fifty-two billion, nine hundred fifty-one million, six hundred sixty-one thousand, one hundred ninety-six".

Divisors: 1 2 4 13 26 43 52 86 172 559 877 1118 1754 2236 3508 11401 22802 37711 45604 75422 128993 150844 257986 490243 515972 980486 1676909 1960972 3353818 5546699 6707636 11093398 22186796 72107087 113126861 144214174 226253722 288428348 452507444 1470649193 2941298386 4864455023 5882596772 9728910046 19457820092 63237915299 126475830598 252951661196