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56709408 = 253784389
BaseRepresentation
bin1101100001010…
…1000100100000
310221201010200110
43120111010200
5104004200113
65343251320
71256010360
oct330250440
9127633613
1056709408
112a013688
1216ba9b40
13b997282
1477629a0
154ea2bc3
hex3615120

56709408 has 48 divisors (see below), whose sum is σ = 170130240. Its totient is φ = 16202496.

The previous prime is 56709407. The next prime is 56709449. The reversal of 56709408 is 80490765.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (56709407) 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, 41523 + ... + 42866.

It is an arithmetic number, because the mean of its divisors is an integer number (3544380).

Almost surely, 256709408 is an apocalyptic number.

It is an amenable number.

56709408 is an abundant number, since it is smaller than the sum of its proper divisors (113420832).

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

56709408 is a wasteful number, since it uses less digits than its factorization.

56709408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84409 (or 84401 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 56709408 is about 7530.5649190482. The cubic root of 56709408 is about 384.1949964495.

The spelling of 56709408 in words is "fifty-six million, seven hundred nine thousand, four hundred eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 84 96 112 168 224 336 672 84389 168778 253167 337556 506334 590723 675112 1012668 1181446 1350224 1772169 2025336 2362892 2700448 3544338 4050672 4725784 7088676 8101344 9451568 14177352 18903136 28354704 56709408