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56541361 = 153136931
BaseRepresentation
bin1101011110110…
…0000010110001
310221101121011111
43113230002301
5103433310421
65335513321
71254410422
oct327540261
9127347144
1056541361
1129a093a8
1216b28841
13b938936
14771b649
154e6cee1
hex35ec0b1

56541361 has 4 divisors (see below), whose sum is σ = 56579824. Its totient is φ = 56502900.

The previous prime is 56541319. The next prime is 56541389. The reversal of 56541361 is 16314565.

56541361 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, and also an emirpimes, since its reverse is a distinct semiprime: 16314565 = 53262913.

It is a cyclic number.

It is not a de Polignac number, because 56541361 - 221 = 54444209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56541161) 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, 16935 + ... + 19996.

It is an arithmetic number, because the mean of its divisors is an integer number (14144956).

Almost surely, 256541361 is an apocalyptic number.

It is an amenable number.

56541361 is a deficient number, since it is larger than the sum of its proper divisors (38463).

56541361 is a wasteful number, since it uses less digits than its factorization.

56541361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38462.

The product of its digits is 10800, while the sum is 31.

The square root of 56541361 is about 7519.3989786418. The cubic root of 56541361 is about 383.8151259422.

The spelling of 56541361 in words is "fifty-six million, five hundred forty-one thousand, three hundred sixty-one".

Divisors: 1 1531 36931 56541361