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56324161 = 163345547
BaseRepresentation
bin1101011011011…
…1000001000001
310220222120020001
43112313001001
5103404333121
65331120001
71252514245
oct326670101
9126876201
1056324161
11298801a3
1216a43001
13b890b0a
1476a2425
154e28991
hex35b7041

56324161 has 4 divisors (see below), whose sum is σ = 56669872. Its totient is φ = 55978452.

The previous prime is 56324159. The next prime is 56324183. The reversal of 56324161 is 16142365.

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 56324161 - 21 = 56324159 is a prime.

It is a super-2 number, since 2×563241612 = 6344822224707842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56324131) 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, 172611 + ... + 172936.

It is an arithmetic number, because the mean of its divisors is an integer number (14167468).

Almost surely, 256324161 is an apocalyptic number.

It is an amenable number.

56324161 is a deficient number, since it is larger than the sum of its proper divisors (345711).

56324161 is a wasteful number, since it uses less digits than its factorization.

56324161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345710.

The product of its digits is 4320, while the sum is 28.

The square root of 56324161 is about 7504.9424381537. The cubic root of 56324161 is about 383.3230282464.

The spelling of 56324161 in words is "fifty-six million, three hundred twenty-four thousand, one hundred sixty-one".

Divisors: 1 163 345547 56324161