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56750113 = 78107159
BaseRepresentation
bin1101100001111…
…1000000100001
310221210012112001
43120133000201
5104012000423
65344204001
71256240140
oct330370041
9127705461
1056750113
112a041222
1217009601
13b9ac964
147773757
154eaecad
hex361f021

56750113 has 4 divisors (see below), whose sum is σ = 64857280. Its totient is φ = 48642948.

The previous prime is 56750059. The next prime is 56750137. The reversal of 56750113 is 31105765.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31105765 = 56221153.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-56750113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56751113) by changing a digit.

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, 4053573 + ... + 4053586.

It is an arithmetic number, because the mean of its divisors is an integer number (16214320).

Almost surely, 256750113 is an apocalyptic number.

It is an amenable number.

56750113 is a deficient number, since it is larger than the sum of its proper divisors (8107167).

56750113 is an equidigital number, since it uses as much as digits as its factorization.

56750113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8107166.

The product of its (nonzero) digits is 3150, while the sum is 28.

The square root of 56750113 is about 7533.2670867294. The cubic root of 56750113 is about 384.2868972332.

Adding to 56750113 its reverse (31105765), we get a palindrome (87855878).

The spelling of 56750113 in words is "fifty-six million, seven hundred fifty thousand, one hundred thirteen".

Divisors: 1 7 8107159 56750113