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56630132 = 22131497309
BaseRepresentation
bin1101100000000…
…1101101110100
310221120002221022
43120001231310
5103444131012
65341440312
71255230266
oct330015564
9127502838
1056630132
1129a6a069
1216b70098
13b96a170
147741b36
154e89472
hex3601b74

56630132 has 24 divisors (see below), whose sum is σ = 107457000. Its totient is φ = 25958016.

The previous prime is 56630113. The next prime is 56630137. The reversal of 56630132 is 23103665.

It can be written as a sum of positive squares in 4 ways, for example, as 139876 + 56490256 = 374^2 + 7516^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56630137) 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, 4094 + ... + 11402.

It is an arithmetic number, because the mean of its divisors is an integer number (4477375).

Almost surely, 256630132 is an apocalyptic number.

56630132 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

56630132 is a deficient number, since it is larger than the sum of its proper divisors (50826868).

56630132 is a wasteful number, since it uses less digits than its factorization.

56630132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7475 (or 7473 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 56630132 is about 7525.2994624799. The cubic root of 56630132 is about 384.0158865679.

Adding to 56630132 its reverse (23103665), we get a palindrome (79733797).

The spelling of 56630132 in words is "fifty-six million, six hundred thirty thousand, one hundred thirty-two".

Divisors: 1 2 4 13 26 52 149 298 596 1937 3874 7309 7748 14618 29236 95017 190034 380068 1089041 2178082 4356164 14157533 28315066 56630132