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23431330023 = 3831031994591
BaseRepresentation
bin10101110100100111…
…011011100011100111
32020110222011220010220
4111310213123203213
5340441410030043
614433022415423
71456436006343
oct256447334347
966428156126
1023431330023
119a34414062
12465b131573
13229554cc2a
1411c3cca623
15922111483
hex5749db8e7

23431330023 has 32 divisors (see below), whose sum is σ = 32092569600. Its totient is φ = 15202740960.

The previous prime is 23431330009. The next prime is 23431330093. The reversal of 23431330023 is 32003313432.

It is a happy number.

It is not a de Polignac number, because 23431330023 - 228 = 23162894567 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23431329975 and 23431330002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23431330093) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5101458 + ... + 5106048.

It is an arithmetic number, because the mean of its divisors is an integer number (1002892800).

Almost surely, 223431330023 is an apocalyptic number.

23431330023 is a deficient number, since it is larger than the sum of its proper divisors (8661239577).

23431330023 is a wasteful number, since it uses less digits than its factorization.

23431330023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4979.

The product of its (nonzero) digits is 3888, while the sum is 24.

Adding to 23431330023 its reverse (32003313432), we get a palindrome (55434643455).

The spelling of 23431330023 in words is "twenty-three billion, four hundred thirty-one million, three hundred thirty thousand, twenty-three".

Divisors: 1 3 83 103 199 249 309 597 4591 8549 13773 16517 20497 25647 49551 61491 381053 472873 913609 1143159 1418619 1701251 2740827 5103753 39248459 75829547 94101727 117745377 227488641 282305181 7810443341 23431330023