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56506254 = 23710912343
BaseRepresentation
bin1101011110001…
…1011110001110
310221022211000020
43113203132032
5103431200004
65335043010
71254203160
oct327433616
9127284006
1056506254
1129994a92
1216b10466
13b92596c
14770c930
154e628d9
hex35e378e

56506254 has 32 divisors (see below), whose sum is σ = 130352640. Its totient is φ = 15995232.

The previous prime is 56506253. The next prime is 56506277. The reversal of 56506254 is 45260565.

It is a happy number.

It is a super-2 number, since 2×565062542 = 6385913482225032, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56506253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1594 + ... + 10749.

It is an arithmetic number, because the mean of its divisors is an integer number (4073520).

Almost surely, 256506254 is an apocalyptic number.

56506254 is an abundant number, since it is smaller than the sum of its proper divisors (73846386).

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

56506254 is a wasteful number, since it uses less digits than its factorization.

56506254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12464.

The product of its (nonzero) digits is 36000, while the sum is 33.

The square root of 56506254 is about 7517.0641875668. The cubic root of 56506254 is about 383.7356714969.

The spelling of 56506254 in words is "fifty-six million, five hundred six thousand, two hundred fifty-four".

Divisors: 1 2 3 6 7 14 21 42 109 218 327 654 763 1526 2289 4578 12343 24686 37029 74058 86401 172802 259203 518406 1345387 2690774 4036161 8072322 9417709 18835418 28253127 56506254