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23231513023 = 109213133147
BaseRepresentation
bin10101101000101101…
…001100000110111111
32012222001012010202021
4111220231030012333
5340034231404043
614401123541011
71451461413445
oct255055140677
965861163667
1023231513023
119941646644
12460422a767
13226302b014
1411a5554b95
1590e7e13ed
hex568b4c1bf

23231513023 has 4 divisors (see below), whose sum is σ = 23444646280. Its totient is φ = 23018379768.

The previous prime is 23231513003. The next prime is 23231513027. The reversal of 23231513023 is 32031513232.

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 23231513023 - 25 = 23231512991 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 (23231513027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106566465 + ... + 106566682.

It is an arithmetic number, because the mean of its divisors is an integer number (5861161570).

Almost surely, 223231513023 is an apocalyptic number.

23231513023 is a deficient number, since it is larger than the sum of its proper divisors (213133257).

23231513023 is a wasteful number, since it uses less digits than its factorization.

23231513023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213133256.

The product of its (nonzero) digits is 3240, while the sum is 25.

The spelling of 23231513023 in words is "twenty-three billion, two hundred thirty-one million, five hundred thirteen thousand, twenty-three".

Divisors: 1 109 213133147 23231513023