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23995690972 = 22111573473609
BaseRepresentation
bin10110010110010000…
…010010111111011100
32021221022010101211021
4112112100102333130
5343120344102342
615005022533524
71506431002501
oct262620227734
967838111737
1023995690972
11a1a3a3a870
1247981372a4
13235544ac16
141238c374a8
1595693e567
hex596412fdc

23995690972 has 24 divisors (see below), whose sum is σ = 46101751920. Its totient is φ = 10837656960.

The previous prime is 23995690937. The next prime is 23995690991. The reversal of 23995690972 is 27909659932.

It is a self number, because there is not a number n which added to its sum of digits gives 23995690972.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1729897 + ... + 1743712.

It is an arithmetic number, because the mean of its divisors is an integer number (1920906330).

Almost surely, 223995690972 is an apocalyptic number.

23995690972 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

23995690972 is a deficient number, since it is larger than the sum of its proper divisors (22106060948).

23995690972 is a wasteful number, since it uses less digits than its factorization.

23995690972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3473781 (or 3473779 counting only the distinct ones).

The product of its (nonzero) digits is 16533720, while the sum is 61.

The spelling of 23995690972 in words is "twenty-three billion, nine hundred ninety-five million, six hundred ninety thousand, nine hundred seventy-two".

Divisors: 1 2 4 11 22 44 157 314 628 1727 3454 6908 3473609 6947218 13894436 38209699 76419398 152838796 545356613 1090713226 2181426452 5998922743 11997845486 23995690972