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56066020 = 2256614241
BaseRepresentation
bin1101010111011…
…1111111100100
310220111110010021
43111313333210
5103323103040
65321404524
71250360533
oct325677744
9126443107
1056066020
112971425a
1216939744
13b80047a
14763631a
154dc724a
hex3577fe4

56066020 has 24 divisors (see below), whose sum is σ = 117944568. Its totient is φ = 22387200.

The previous prime is 56065993. The next prime is 56066027. The reversal of 56066020 is 2066065.

It can be written as a sum of positive squares in 4 ways, for example, as 29419776 + 26646244 = 5424^2 + 5162^2 .

It is not an unprimeable number, because it can be changed into a prime (56066027) 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, 11100 + ... + 15340.

It is an arithmetic number, because the mean of its divisors is an integer number (4914357).

Almost surely, 256066020 is an apocalyptic number.

It is an amenable number.

56066020 is an abundant number, since it is smaller than the sum of its proper divisors (61878548).

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

56066020 is a wasteful number, since it uses less digits than its factorization.

56066020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4911 (or 4909 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 56066020 is about 7487.7246210047. The cubic root of 56066020 is about 382.7365247920.

The spelling of 56066020 in words is "fifty-six million, sixty-six thousand, twenty".

Divisors: 1 2 4 5 10 20 661 1322 2644 3305 4241 6610 8482 13220 16964 21205 42410 84820 2803301 5606602 11213204 14016505 28033010 56066020