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23896919660 = 2254999239017
BaseRepresentation
bin10110010000010111…
…100000111001101100
32021200102021022001112
4112100113200321230
5342420102412120
614551133531152
71504121315465
oct262027407154
967612238045
1023896919660
11a153208489
12476b043ab8
13233ab47763
141229a85d6c
1594ce2dbc5
hex5905e0e6c

23896919660 has 24 divisors (see below), whose sum is σ = 50193780000. Its totient is φ = 9556815744.

The previous prime is 23896919633. The next prime is 23896919689. The reversal of 23896919660 is 6691969832.

It is a self number, because there is not a number n which added to its sum of digits gives 23896919660.

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, 19529 + ... + 219488.

It is an arithmetic number, because the mean of its divisors is an integer number (2091407500).

Almost surely, 223896919660 is an apocalyptic number.

23896919660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23896919660 is an abundant number, since it is smaller than the sum of its proper divisors (26296860340).

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

23896919660 is a wasteful number, since it uses less digits than its factorization.

23896919660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244025 (or 244023 counting only the distinct ones).

The product of its (nonzero) digits is 7558272, while the sum is 59.

The spelling of 23896919660 in words is "twenty-three billion, eight hundred ninety-six million, nine hundred nineteen thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 4999 9998 19996 24995 49990 99980 239017 478034 956068 1195085 2390170 4780340 1194845983 2389691966 4779383932 5974229915 11948459830 23896919660