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11904930893257 is a prime number
BaseRepresentation
bin1010110100111101010100…
…1011010100110111001001
31120011002201002210002110221
42231033111023110313021
53030022244302041012
641153014425110041
72336050166645053
oct255172513246711
946132632702427
1011904930893257
11387a9421458a6
121403309328321
1368482662397c
142d22b77908d3
15159a1ba3b507
hexad3d52d4dc9

11904930893257 has 2 divisors, whose sum is σ = 11904930893258. Its totient is φ = 11904930893256.

The previous prime is 11904930893189. The next prime is 11904930893329. The reversal of 11904930893257 is 75239803940911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7897791710601 + 4007139182656 = 2810301^2 + 2001784^2 .

It is a cyclic number.

It is not a de Polignac number, because 11904930893257 - 227 = 11904796675529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11904930893195 and 11904930893204.

It is not a weakly prime, because it can be changed into another prime (11904930893057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5952465446628 + 5952465446629.

It is an arithmetic number, because the mean of its divisors is an integer number (5952465446629).

Almost surely, 211904930893257 is an apocalyptic number.

It is an amenable number.

11904930893257 is a deficient number, since it is larger than the sum of its proper divisors (1).

11904930893257 is an equidigital number, since it uses as much as digits as its factorization.

11904930893257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14696640, while the sum is 61.

The spelling of 11904930893257 in words is "eleven trillion, nine hundred four billion, nine hundred thirty million, eight hundred ninety-three thousand, two hundred fifty-seven".