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56146253 = 313179381
BaseRepresentation
bin1101011000101…
…1100101001101
310220122112011212
43112023211031
5103333140003
65323224205
71251143462
oct326134515
9126575155
1056146253
1129769569
1216978065
13b82ab47
147657669
154de0dd8
hex358b94d

56146253 has 4 divisors (see below), whose sum is σ = 56325948. Its totient is φ = 55966560.

The previous prime is 56146249. The next prime is 56146283. The reversal of 56146253 is 35264165.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35264165 = 57052833.

It can be written as a sum of positive squares in 2 ways, for example, as 15976009 + 40170244 = 3997^2 + 6338^2 .

It is a cyclic number.

It is not a de Polignac number, because 56146253 - 22 = 56146249 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56146283) 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, 89378 + ... + 90003.

It is an arithmetic number, because the mean of its divisors is an integer number (14081487).

Almost surely, 256146253 is an apocalyptic number.

It is an amenable number.

56146253 is a deficient number, since it is larger than the sum of its proper divisors (179695).

56146253 is a wasteful number, since it uses less digits than its factorization.

56146253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179694.

The product of its digits is 21600, while the sum is 32.

The square root of 56146253 is about 7493.0803412215. The cubic root of 56146253 is about 382.9190088409.

The spelling of 56146253 in words is "fifty-six million, one hundred forty-six thousand, two hundred fifty-three".

Divisors: 1 313 179381 56146253