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56131323 = 383225427
BaseRepresentation
bin1101011000011…
…1111011111011
310220121202200220
43112013323323
5103332200243
65323031123
71251052113
oct326077373
9126552626
1056131323
1129759326
121696b4a3
13b824101
147652043
154ddb783
hex3587efb

56131323 has 8 divisors (see below), whose sum is σ = 75743808. Its totient is φ = 36969864.

The previous prime is 56131319. The next prime is 56131351. The reversal of 56131323 is 32313165.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 56131323 - 22 = 56131319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56131293 and 56131302.

It is not an unprimeable number, because it can be changed into a prime (56131303) 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, 112465 + ... + 112962.

It is an arithmetic number, because the mean of its divisors is an integer number (9467976).

Almost surely, 256131323 is an apocalyptic number.

56131323 is a deficient number, since it is larger than the sum of its proper divisors (19612485).

56131323 is a wasteful number, since it uses less digits than its factorization.

56131323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225513.

The product of its digits is 1620, while the sum is 24.

The square root of 56131323 is about 7492.0840224867. The cubic root of 56131323 is about 382.8850648268.

Adding to 56131323 its reverse (32313165), we get a palindrome (88444488).

The spelling of 56131323 in words is "fifty-six million, one hundred thirty-one thousand, three hundred twenty-three".

Divisors: 1 3 83 249 225427 676281 18710441 56131323