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56682645 = 3510393637
BaseRepresentation
bin1101100000111…
…0100010010101
310221122202222020
43120032202111
5104002321040
65342523353
71255536345
oct330164225
9127582866
1056682645
1129aa5568
1216b96559
13b988036
147756d25
154e99cd0
hex360e895

56682645 has 16 divisors (see below), whose sum is σ = 90804480. Its totient is φ = 30193344.

The previous prime is 56682569. The next prime is 56682653. The reversal of 56682645 is 54628665.

It is not a de Polignac number, because 56682645 - 211 = 56680597 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56682597 and 56682606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13767 + ... + 17403.

It is an arithmetic number, because the mean of its divisors is an integer number (5675280).

Almost surely, 256682645 is an apocalyptic number.

It is an amenable number.

56682645 is a deficient number, since it is larger than the sum of its proper divisors (34121835).

56682645 is a wasteful number, since it uses less digits than its factorization.

56682645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4684.

The product of its digits is 345600, while the sum is 42.

The square root of 56682645 is about 7528.7877510261. The cubic root of 56682645 is about 384.1345489331.

The spelling of 56682645 in words is "fifty-six million, six hundred eighty-two thousand, six hundred forty-five".

Divisors: 1 3 5 15 1039 3117 3637 5195 10911 15585 18185 54555 3778843 11336529 18894215 56682645