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56148361 = 173324557
BaseRepresentation
bin1101011000110…
…0000110001001
310220122122001221
43112030012021
5103333221421
65323242041
71251152563
oct326140611
9126578057
1056148361
1129770105
1216979321
13b82baa9
147658333
154de1841
hex358c189

56148361 has 4 divisors (see below), whose sum is σ = 56473092. Its totient is φ = 55823632.

The previous prime is 56148343. The next prime is 56148371. The reversal of 56148361 is 16384165.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21855625 + 34292736 = 4675^2 + 5856^2 .

It is a cyclic number.

It is not a de Polignac number, because 56148361 - 25 = 56148329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56148371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162106 + ... + 162451.

It is an arithmetic number, because the mean of its divisors is an integer number (14118273).

Almost surely, 256148361 is an apocalyptic number.

It is an amenable number.

56148361 is a deficient number, since it is larger than the sum of its proper divisors (324731).

56148361 is a wasteful number, since it uses less digits than its factorization.

56148361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324730.

The product of its digits is 17280, while the sum is 34.

The square root of 56148361 is about 7493.2210030133. The cubic root of 56148361 is about 382.9238009872.

The spelling of 56148361 in words is "fifty-six million, one hundred forty-eight thousand, three hundred sixty-one".

Divisors: 1 173 324557 56148361