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23056523 = 73293789
BaseRepresentation
bin101011111110…
…1000010001011
31121101101121022
41113331002023
521400302043
62142103055
7366656120
oct127750213
947341538
1023056523
1112018786
12787aa8b
134a13719
1430c2747
152056868
hex15fd08b

23056523 has 4 divisors (see below), whose sum is σ = 26350320. Its totient is φ = 19762728.

The previous prime is 23056507. The next prime is 23056531. The reversal of 23056523 is 32565032.

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

It is a cyclic number.

It is not a de Polignac number, because 23056523 - 24 = 23056507 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23056492 and 23056501.

It is not an unprimeable number, because it can be changed into a prime (23056543) 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, 1646888 + ... + 1646901.

It is an arithmetic number, because the mean of its divisors is an integer number (6587580).

Almost surely, 223056523 is an apocalyptic number.

23056523 is a deficient number, since it is larger than the sum of its proper divisors (3293797).

23056523 is an equidigital number, since it uses as much as digits as its factorization.

23056523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3293796.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 23056523 is about 4801.7208373665. The cubic root of 23056523 is about 284.6194695730.

The spelling of 23056523 in words is "twenty-three million, fifty-six thousand, five hundred twenty-three".

Divisors: 1 7 3293789 23056523