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56383870 = 255999413
BaseRepresentation
bin1101011100010…
…1100101111110
310221002121010111
43113011211332
5103413240440
65332300234
71253153314
oct327054576
9127077114
1056383870
1129911044
1216a7167a
13b8b204a
1476ba0b4
154e3b4ea
hex35c597e

56383870 has 16 divisors (see below), whose sum is σ = 101671200. Its totient is φ = 22513504.

The previous prime is 56383861. The next prime is 56383871. The reversal of 56383870 is 7838365.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56383871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1284 + ... + 10696.

It is an arithmetic number, because the mean of its divisors is an integer number (6354450).

Almost surely, 256383870 is an apocalyptic number.

56383870 is a deficient number, since it is larger than the sum of its proper divisors (45287330).

56383870 is a wasteful number, since it uses less digits than its factorization.

56383870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10019.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 56383870 is about 7508.9193629976. The cubic root of 56383870 is about 383.4584334395.

The spelling of 56383870 in words is "fifty-six million, three hundred eighty-three thousand, eight hundred seventy".

Divisors: 1 2 5 10 599 1198 2995 5990 9413 18826 47065 94130 5638387 11276774 28191935 56383870