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56888742 = 2343311709
BaseRepresentation
bin1101100100000…
…0110110100110
310222001020200110
43121000312212
5104030414432
65351153450
71260355251
oct331006646
9128036613
1056888742
112a126399
1217075886
13ba2aaa1
1477ac098
154edadcc
hex3640da6

56888742 has 32 divisors (see below), whose sum is σ = 116962560. Its totient is φ = 18436320.

The previous prime is 56888737. The next prime is 56888743. The reversal of 56888742 is 24788865.

It is a junction number, because it is equal to n+sod(n) for n = 56888691 and 56888700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56888743) 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, 79884 + ... + 80592.

It is an arithmetic number, because the mean of its divisors is an integer number (3655080).

Almost surely, 256888742 is an apocalyptic number.

56888742 is an abundant number, since it is smaller than the sum of its proper divisors (60073818).

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

56888742 is a wasteful number, since it uses less digits than its factorization.

56888742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1068.

The product of its digits is 860160, while the sum is 48.

The square root of 56888742 is about 7542.4625952006. The cubic root of 56888742 is about 384.5995543987.

It can be divided in two parts, 56888 and 742, that added together give a triangular number (57630 = T339).

The spelling of 56888742 in words is "fifty-six million, eight hundred eighty-eight thousand, seven hundred forty-two".

Divisors: 1 2 3 6 43 86 129 258 311 622 709 933 1418 1866 2127 4254 13373 26746 30487 40119 60974 80238 91461 182922 220499 440998 661497 1322994 9481457 18962914 28444371 56888742