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56283961 = 178331567
BaseRepresentation
bin1101011010110…
…1001100111001
310220220112002011
43112231030321
5103402041321
65330205521
71252256116
oct326551471
9126815064
1056283961
1129852a78
1216a238a1
13b878726
14769190d
154e1bae1
hex35ad339

56283961 has 4 divisors (see below), whose sum is σ = 56317312. Its totient is φ = 56250612.

The previous prime is 56283943. The next prime is 56283971. The reversal of 56283961 is 16938265.

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: 16938265 = 53387653.

It is a cyclic number.

It is not a de Polignac number, because 56283961 - 29 = 56283449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56283971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14001 + ... + 17566.

It is an arithmetic number, because the mean of its divisors is an integer number (14079328).

Almost surely, 256283961 is an apocalyptic number.

It is an amenable number.

56283961 is a deficient number, since it is larger than the sum of its proper divisors (33351).

56283961 is a wasteful number, since it uses less digits than its factorization.

56283961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33350.

The product of its digits is 77760, while the sum is 40.

The square root of 56283961 is about 7502.2637250366. The cubic root of 56283961 is about 383.2318107121.

The spelling of 56283961 in words is "fifty-six million, two hundred eighty-three thousand, nine hundred sixty-one".

Divisors: 1 1783 31567 56283961