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56140554 = 2319225919
BaseRepresentation
bin1101011000101…
…0001100001010
310220122020100210
43112022030022
5103332444204
65323141550
71251121041
oct326121412
9126566323
1056140554
1129765258
12169748b6
13b828382
147655558
154dde389
hex358a30a

56140554 has 24 divisors (see below), whose sum is σ = 118506240. Its totient is φ = 17727912.

The previous prime is 56140543. The next prime is 56140561. The reversal of 56140554 is 45504165.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10794 + ... + 15125.

It is an arithmetic number, because the mean of its divisors is an integer number (4937760).

Almost surely, 256140554 is an apocalyptic number.

56140554 is an abundant number, since it is smaller than the sum of its proper divisors (62365686).

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

56140554 is a wasteful number, since it uses less digits than its factorization.

56140554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25962 (or 25943 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 56140554 is about 7492.7000473794. The cubic root of 56140554 is about 382.9060526230.

The spelling of 56140554 in words is "fifty-six million, one hundred forty thousand, five hundred fifty-four".

Divisors: 1 2 3 6 19 38 57 114 361 722 1083 2166 25919 51838 77757 155514 492461 984922 1477383 2954766 9356759 18713518 28070277 56140554