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56760121 = 115160011
BaseRepresentation
bin1101100010000…
…1011100111001
310221210201020201
43120201130321
5104012310441
65344322201
71256311255
oct330413471
9127721221
1056760121
112a0487a0
1217013361
13b9b4392
147777265
154eb2c31
hex3621739

56760121 has 4 divisors (see below), whose sum is σ = 61920144. Its totient is φ = 51600100.

The previous prime is 56760103. The next prime is 56760133. The reversal of 56760121 is 12106765.

56760121 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 a cyclic number.

It is not a de Polignac number, because 56760121 - 219 = 56235833 is a prime.

It is a super-2 number, since 2×567601212 = 6443422671869282, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 56760121.

It is not an unprimeable number, because it can be changed into a prime (56767121) 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, 2579995 + ... + 2580016.

It is an arithmetic number, because the mean of its divisors is an integer number (15480036).

Almost surely, 256760121 is an apocalyptic number.

It is an amenable number.

56760121 is a deficient number, since it is larger than the sum of its proper divisors (5160023).

56760121 is a wasteful number, since it uses less digits than its factorization.

56760121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5160022.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 56760121 is about 7533.9313110752. The cubic root of 56760121 is about 384.3094858355.

Adding to 56760121 its reverse (12106765), we get a palindrome (68866886).

The spelling of 56760121 in words is "fifty-six million, seven hundred sixty thousand, one hundred twenty-one".

Divisors: 1 11 5160011 56760121