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56125137 = 318708379
BaseRepresentation
bin1101011000011…
…0011011010001
310220121110012210
43112012123101
5103332001022
65322542333
71251025065
oct326063321
9126543183
1056125137
1129754712
12169679a9
13b821353
14764daa5
154dd9a0c
hex35866d1

56125137 has 4 divisors (see below), whose sum is σ = 74833520. Its totient is φ = 37416756.

The previous prime is 56125123. The next prime is 56125141. The reversal of 56125137 is 73152165.

56125137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 56125137 - 215 = 56092369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56125637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9354187 + ... + 9354192.

It is an arithmetic number, because the mean of its divisors is an integer number (18708380).

Almost surely, 256125137 is an apocalyptic number.

It is an amenable number.

56125137 is a deficient number, since it is larger than the sum of its proper divisors (18708383).

56125137 is a wasteful number, since it uses less digits than its factorization.

56125137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18708382.

The product of its digits is 6300, while the sum is 30.

The square root of 56125137 is about 7491.6711753787. The cubic root of 56125137 is about 382.8709989191.

The spelling of 56125137 in words is "fifty-six million, one hundred twenty-five thousand, one hundred thirty-seven".

Divisors: 1 3 18708379 56125137