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23013123053 = 73315248261
BaseRepresentation
bin10101011011101100…
…000110001111101101
32012101211020210000212
4111123230012033231
5334112324414203
614323323032205
71443200214134
oct253354061755
965354223025
1023013123053
11983a342a68
12456306b665
132229a0539b
14118454691b
158ea5531d8
hex55bb063ed

23013123053 has 4 divisors (see below), whose sum is σ = 23328371388. Its totient is φ = 22697874720.

The previous prime is 23013123031. The next prime is 23013123061. The reversal of 23013123053 is 35032131032.

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 19798459849 + 3214663204 = 140707^2 + 56698^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-23013123053 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 (23013123013) 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, 157624058 + ... + 157624203.

It is an arithmetic number, because the mean of its divisors is an integer number (5832092847).

Almost surely, 223013123053 is an apocalyptic number.

It is an amenable number.

23013123053 is a deficient number, since it is larger than the sum of its proper divisors (315248335).

23013123053 is an equidigital number, since it uses as much as digits as its factorization.

23013123053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315248334.

The product of its (nonzero) digits is 1620, while the sum is 23.

Adding to 23013123053 its reverse (35032131032), we get a palindrome (58045254085).

The spelling of 23013123053 in words is "twenty-three billion, thirteen million, one hundred twenty-three thousand, fifty-three".

Divisors: 1 73 315248261 23013123053