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23023632031 = 83277393157
BaseRepresentation
bin10101011100010100…
…001011111010011111
32012102120000200122021
4111130110023322133
5334123022211111
614324340201011
71443355433431
oct253424137237
965376020567
1023023632031
119845270574
124566699167
13222bc4480a
141185ac0651
158eb42bd71
hex55c50be9f

23023632031 has 4 divisors (see below), whose sum is σ = 23301025272. Its totient is φ = 22746238792.

The previous prime is 23023632019. The next prime is 23023632089. The reversal of 23023632031 is 13023632032.

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 23023632031 - 25 = 23023631999 is a prime.

It is a super-2 number, since 2×230236320312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23023631987 and 23023632005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23023632011) 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, 138696496 + ... + 138696661.

It is an arithmetic number, because the mean of its divisors is an integer number (5825256318).

Almost surely, 223023632031 is an apocalyptic number.

23023632031 is a deficient number, since it is larger than the sum of its proper divisors (277393241).

23023632031 is an equidigital number, since it uses as much as digits as its factorization.

23023632031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277393240.

The product of its (nonzero) digits is 3888, while the sum is 25.

Subtracting from 23023632031 its reverse (13023632032), we obtain a palindrome (9999999999).

The spelling of 23023632031 in words is "twenty-three billion, twenty-three million, six hundred thirty-two thousand, thirty-one".

Divisors: 1 83 277393157 23023632031