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56751142 = 2731433041
BaseRepresentation
bin1101100001111…
…1010000100110
310221210020221011
43120133100212
5104012014032
65344212434
71256243140
oct330372046
9127706834
1056751142
112a041a78
121700a11a
13b9b0276
147773c90
154eb0247
hex361f426

56751142 has 32 divisors (see below), whose sum is σ = 102795264. Its totient is φ = 22982400.

The previous prime is 56751133. The next prime is 56751161. The reversal of 56751142 is 24115765.

56751142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×567511423 (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17142 + ... + 20182.

It is an arithmetic number, because the mean of its divisors is an integer number (3212352).

Almost surely, 256751142 is an apocalyptic number.

56751142 is a deficient number, since it is larger than the sum of its proper divisors (46044122).

56751142 is a wasteful number, since it uses less digits than its factorization.

56751142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3124.

The product of its digits is 8400, while the sum is 31.

The square root of 56751142 is about 7533.3353834805. The cubic root of 56751142 is about 384.2892198648.

The spelling of 56751142 in words is "fifty-six million, seven hundred fifty-one thousand, one hundred forty-two".

Divisors: 1 2 7 14 31 43 62 86 217 301 434 602 1333 2666 3041 6082 9331 18662 21287 42574 94271 130763 188542 261526 659897 915341 1319794 1830682 4053653 8107306 28375571 56751142