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56313669 = 318771223
BaseRepresentation
bin1101011011010…
…0011101000101
310220222000211110
43112310131011
5103404014134
65330555233
71252441536
oct326643505
9126860743
1056313669
1129873325
1216a38b19
13b8890c9
14769c68d
154e257e9
hex35b4745

56313669 has 4 divisors (see below), whose sum is σ = 75084896. Its totient is φ = 37542444.

The previous prime is 56313659. The next prime is 56313709. The reversal of 56313669 is 96631365.

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 56313669 - 215 = 56280901 is a prime.

It is a super-2 number, since 2×563136692 = 6342458632483122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56313659) 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, 9385609 + ... + 9385614.

It is an arithmetic number, because the mean of its divisors is an integer number (18771224).

Almost surely, 256313669 is an apocalyptic number.

It is an amenable number.

56313669 is a deficient number, since it is larger than the sum of its proper divisors (18771227).

56313669 is a wasteful number, since it uses less digits than its factorization.

56313669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18771226.

The product of its digits is 87480, while the sum is 39.

The square root of 56313669 is about 7504.2433995707. The cubic root of 56313669 is about 383.2992251106.

The spelling of 56313669 in words is "fifty-six million, three hundred thirteen thousand, six hundred sixty-nine".

Divisors: 1 3 18771223 56313669