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256755113 = 1923122943
BaseRepresentation
bin11110100110111…
…00010110101001
3122220010111210122
433103130112221
51011212130423
641251053025
76235245116
oct1723342651
9586114718
10256755113
11121a27a0a
1271ba1175
1341269304
142615790d
151781a8c8
hexf4dc5a9

256755113 has 12 divisors (see below), whose sum is σ = 279733248. Its totient is φ = 235384920.

The previous prime is 256755091. The next prime is 256755127. The reversal of 256755113 is 311557652.

It is not a de Polignac number, because 256755113 - 216 = 256689577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (256751113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 281 + ... + 22662.

It is an arithmetic number, because the mean of its divisors is an integer number (23311104).

Almost surely, 2256755113 is an apocalyptic number.

It is an amenable number.

256755113 is a deficient number, since it is larger than the sum of its proper divisors (22978135).

256755113 is a wasteful number, since it uses less digits than its factorization.

256755113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23012 (or 22993 counting only the distinct ones).

The product of its digits is 31500, while the sum is 35.

The square root of 256755113 is about 16023.5799058762. The cubic root of 256755113 is about 635.5841137792.

The spelling of 256755113 in words is "two hundred fifty-six million, seven hundred fifty-five thousand, one hundred thirteen".

Divisors: 1 19 31 361 589 11191 22943 435917 711233 8282423 13513427 256755113