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56634340 = 2257404531
BaseRepresentation
bin1101100000001…
…0101111100100
310221120022201011
43120002233210
5103444244330
65341512004
71255245460
oct330025744
9127508634
1056634340
1129a72244
1216b72604
13b96c059
1477434a0
154e8a82a
hex3602be4

56634340 has 24 divisors (see below), whose sum is σ = 135922752. Its totient is φ = 19417440.

The previous prime is 56634337. The next prime is 56634341. The reversal of 56634340 is 4343665.

56634340 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

56634340 is strictly pandigital in base 9.

It is not an unprimeable number, because it can be changed into a prime (56634341) 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, 202126 + ... + 202405.

It is an arithmetic number, because the mean of its divisors is an integer number (5663448).

Almost surely, 256634340 is an apocalyptic number.

It is an amenable number.

56634340 is an abundant number, since it is smaller than the sum of its proper divisors (79288412).

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

56634340 is a wasteful number, since it uses less digits than its factorization.

56634340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404547 (or 404545 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 31.

The square root of 56634340 is about 7525.5790474886. The cubic root of 56634340 is about 384.0253979874.

The spelling of 56634340 in words is "fifty-six million, six hundred thirty-four thousand, three hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 404531 809062 1618124 2022655 2831717 4045310 5663434 8090620 11326868 14158585 28317170 56634340