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56685500 = 2253113371
BaseRepresentation
bin1101100000111…
…1001110111100
310221122220212222
43120033032330
5104002414000
65342544512
71255550564
oct330171674
9127586788
1056685500
1129aa7723
1216b98138
13b989421
147757da4
154e9aa85
hex360f3bc

56685500 has 24 divisors (see below), whose sum is σ = 123802224. Its totient is φ = 22674000.

The previous prime is 56685491. The next prime is 56685511. The reversal of 56685500 is 558665.

It is a super-3 number, since 3×566855003 (a number of 24 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56186 + ... + 57185.

It is an arithmetic number, because the mean of its divisors is an integer number (5158426).

Almost surely, 256685500 is an apocalyptic number.

56685500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

56685500 is an abundant number, since it is smaller than the sum of its proper divisors (67116724).

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

56685500 is a wasteful number, since it uses less digits than its factorization.

56685500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113390 (or 113378 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 35.

The square root of 56685500 is about 7528.9773541963. The cubic root of 56685500 is about 384.1409982071.

The spelling of 56685500 in words is "fifty-six million, six hundred eighty-five thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 50 100 125 250 500 113371 226742 453484 566855 1133710 2267420 2834275 5668550 11337100 14171375 28342750 56685500