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56431124 = 22101139681
BaseRepresentation
bin1101011101000…
…1001000010100
310221011222221122
43113101020110
5103421243444
65333303112
71253441141
oct327211024
9127158848
1056431124
11299435a2
1216a94a98
13b8ca6c9
1476cd3c8
154e4a4ee
hex35d1214

56431124 has 12 divisors (see below), whose sum is σ = 99732948. Its totient is φ = 27936000.

The previous prime is 56431097. The next prime is 56431139. The reversal of 56431124 is 42113465.

It can be written as a sum of positive squares in 2 ways, for example, as 32126224 + 24304900 = 5668^2 + 4930^2 .

It is a junction number, because it is equal to n+sod(n) for n = 56431093 and 56431102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69437 + ... + 70244.

It is an arithmetic number, because the mean of its divisors is an integer number (8311079).

Almost surely, 256431124 is an apocalyptic number.

It is an amenable number.

56431124 is a deficient number, since it is larger than the sum of its proper divisors (43301824).

56431124 is a wasteful number, since it uses less digits than its factorization.

56431124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139786 (or 139784 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 56431124 is about 7512.0652286838. The cubic root of 56431124 is about 383.5655260365.

Adding to 56431124 its reverse (42113465), we get a palindrome (98544589).

The spelling of 56431124 in words is "fifty-six million, four hundred thirty-one thousand, one hundred twenty-four".

Divisors: 1 2 4 101 202 404 139681 279362 558724 14107781 28215562 56431124