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56682400 = 255270853
BaseRepresentation
bin1101100000111…
…0011110100000
310221122202122011
43120032132200
5104002314100
65342522304
71255535545
oct330163640
9127582564
1056682400
1129aa5365
1216b96394
13b987ba8
147756bcc
154e99bba
hex360e7a0

56682400 has 36 divisors (see below), whose sum is σ = 138377862. Its totient is φ = 22672640.

The previous prime is 56682391. The next prime is 56682401. The reversal of 56682400 is 428665.

It can be written as a sum of positive squares in 3 ways, for example, as 51093904 + 5588496 = 7148^2 + 2364^2 .

It is not an unprimeable number, because it can be changed into a prime (56682401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34627 + ... + 36226.

Almost surely, 256682400 is an apocalyptic number.

56682400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

56682400 is an abundant number, since it is smaller than the sum of its proper divisors (81695462).

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

56682400 is a wasteful number, since it uses less digits than its factorization.

56682400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70873 (or 70860 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 56682400 is about 7528.7714801287. The cubic root of 56682400 is about 384.1339954827.

The spelling of 56682400 in words is "fifty-six million, six hundred eighty-two thousand, four hundred".

Divisors: 1 2 4 5 8 10 16 20 25 32 40 50 80 100 160 200 400 800 70853 141706 283412 354265 566824 708530 1133648 1417060 1771325 2267296 2834120 3542650 5668240 7085300 11336480 14170600 28341200 56682400