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23015143131 = 323333552799
BaseRepresentation
bin10101011011110011…
…110011011011011011
32012101222001102001120
4111123303303123123
5334113334040011
614323434220323
71443223326441
oct253363633333
965358042046
1023015143131
1198404a2752
1245638846a3
13222a2619b6
141184910b91
158ea801a06
hex55bcf36db

23015143131 has 8 divisors (see below), whose sum is σ = 32021068800. Its totient is φ = 14676323112.

The previous prime is 23015143127. The next prime is 23015143153. The reversal of 23015143131 is 13134151032.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23015143131 - 22 = 23015143127 is a prime.

It is a super-2 number, since 2×230151431312 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23015143121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166776331 + ... + 166776468.

It is an arithmetic number, because the mean of its divisors is an integer number (4002633600).

Almost surely, 223015143131 is an apocalyptic number.

23015143131 is a deficient number, since it is larger than the sum of its proper divisors (9005925669).

23015143131 is a wasteful number, since it uses less digits than its factorization.

23015143131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333552825.

The product of its (nonzero) digits is 1080, while the sum is 24.

Adding to 23015143131 its reverse (13134151032), we get a palindrome (36149294163).

The spelling of 23015143131 in words is "twenty-three billion, fifteen million, one hundred forty-three thousand, one hundred thirty-one".

Divisors: 1 3 23 69 333552799 1000658397 7671714377 23015143131