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23031042102 = 2323154437583
BaseRepresentation
bin10101011100110000…
…011101000000110110
32012110001222011100100
4111130300131000312
5334131421321402
614325203054530
71443505425225
oct253460350066
965401864310
1023031042102
1198494718a2
124569071446
13223063a583
141186a8ccbc
158ebde271c
hex55cc1d036

23031042102 has 48 divisors (see below), whose sum is σ = 51526545408. Its totient is φ = 7427023920.

The previous prime is 23031042101. The next prime is 23031042113. The reversal of 23031042102 is 20124013032.

23031042102 is a `hidden beast` number, since 230 + 3 + 10 + 421 + 0 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23031042101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3033403 + ... + 3040985.

It is an arithmetic number, because the mean of its divisors is an integer number (1073469696).

Almost surely, 223031042102 is an apocalyptic number.

23031042102 is an abundant number, since it is smaller than the sum of its proper divisors (28495503306).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23031042102 is a wasteful number, since it uses less digits than its factorization.

23031042102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13065 (or 13062 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 23031042102 its reverse (20124013032), we get a palindrome (43155055134).

The spelling of 23031042102 in words is "twenty-three billion, thirty-one million, forty-two thousand, one hundred two".

Divisors: 1 2 3 6 9 18 31 62 93 186 279 558 5443 7583 10886 15166 16329 22749 32658 45498 48987 68247 97974 136494 168733 235073 337466 470146 506199 705219 1012398 1410438 1518597 2115657 3037194 4231314 41274269 82548538 123822807 247645614 371468421 742936842 1279502339 2559004678 3838507017 7677014034 11515521051 23031042102