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56136642 = 239356107
BaseRepresentation
bin1101011000100…
…1001111000010
310220122000222220
43112021033002
5103332333032
65323111510
71251103452
oct326111702
9126560886
1056136642
1129762321
1216972596
13b826663
147653d62
154ddd12c
hex35893c2

56136642 has 8 divisors (see below), whose sum is σ = 112273296. Its totient is φ = 18712212.

The previous prime is 56136637. The next prime is 56136643. The reversal of 56136642 is 24663165.

It is a sphenic number, since it is the product of 3 distinct primes.

56136642 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (56136643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4678048 + ... + 4678059.

It is an arithmetic number, because the mean of its divisors is an integer number (14034162).

Almost surely, 256136642 is an apocalyptic number.

56136642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

56136642 is a wasteful number, since it uses less digits than its factorization.

56136642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9356112.

The product of its digits is 25920, while the sum is 33.

The square root of 56136642 is about 7492.4389887406. The cubic root of 56136642 is about 382.8971584982.

The spelling of 56136642 in words is "fifty-six million, one hundred thirty-six thousand, six hundred forty-two".

Divisors: 1 2 3 6 9356107 18712214 28068321 56136642