Search a number
-
+
256100058 = 232163191457
BaseRepresentation
bin11110100001111…
…00011011011010
3122211220020020100
433100330123122
51011030200213
641225040230
76226546254
oct1720743332
9584806210
10256100058
1112161a845
1271926076
134109a0c6
1426026cd4
151773b773
hexf43c6da

256100058 has 48 divisors (see below), whose sum is σ = 562438656. Its totient is φ = 84214080.

The previous prime is 256100057. The next prime is 256100071. The reversal of 256100058 is 850001652.

It is not an unprimeable number, because it can be changed into a prime (256100057) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 560166 + ... + 560622.

It is an arithmetic number, because the mean of its divisors is an integer number (11717472).

Almost surely, 2256100058 is an apocalyptic number.

256100058 is an abundant number, since it is smaller than the sum of its proper divisors (306338598).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

256100058 is a wasteful number, since it uses less digits than its factorization.

256100058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819 (or 816 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 256100058 is about 16003.1265070298. The cubic root of 256100058 is about 635.0431351027.

The spelling of 256100058 in words is "two hundred fifty-six million, one hundred thousand, fifty-eight".

Divisors: 1 2 3 6 9 18 163 191 326 382 457 489 573 914 978 1146 1371 1467 1719 2742 2934 3438 4113 8226 31133 62266 74491 87287 93399 148982 174574 186798 223473 261861 280197 446946 523722 560394 670419 785583 1340838 1571166 14227781 28455562 42683343 85366686 128050029 256100058