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56405060 = 2253737561
BaseRepresentation
bin1101011100101…
…0110001000100
310221010200012022
43113022301010
5103414430220
65332542312
71253302145
oct327126104
9127120168
1056405060
1129925a58
1216a81998
13b8bb89a
1476c3acc
154e42925
hex35cac44

56405060 has 24 divisors (see below), whose sum is σ = 118783896. Its totient is φ = 22498560.

The previous prime is 56405059. The next prime is 56405117. The reversal of 56405060 is 6050465.

It can be written as a sum of positive squares in 4 ways, for example, as 2353156 + 54051904 = 1534^2 + 7352^2 .

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, 3680 + ... + 11240.

It is an arithmetic number, because the mean of its divisors is an integer number (4949329).

Almost surely, 256405060 is an apocalyptic number.

It is an amenable number.

56405060 is an abundant number, since it is smaller than the sum of its proper divisors (62378836).

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

56405060 is a wasteful number, since it uses less digits than its factorization.

56405060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7943 (or 7941 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 56405060 is about 7510.3302191049. The cubic root of 56405060 is about 383.5064641175.

The spelling of 56405060 in words is "fifty-six million, four hundred five thousand, sixty".

Divisors: 1 2 4 5 10 20 373 746 1492 1865 3730 7460 7561 15122 30244 37805 75610 151220 2820253 5640506 11281012 14101265 28202530 56405060