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23685463968 = 2531991239817
BaseRepresentation
bin10110000011110000…
…110111111110100000
32021010200101020101020
4112003300313332200
5342001434321333
614514141405440
71465643056545
oct260360677640
967120336336
1023685463968
11a054910711
124710269880
1323060ac14a
141209960bcc
159395b03b3
hex583c37fa0

23685463968 has 48 divisors (see below), whose sum is σ = 62486827200. Its totient is φ = 7855474176.

The previous prime is 23685463951. The next prime is 23685463999. The reversal of 23685463968 is 86936458632.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×236854639682 (a number of 22 digits) contains 22 as substring.

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, 600805 + ... + 639012.

It is an arithmetic number, because the mean of its divisors is an integer number (1301808900).

Almost surely, 223685463968 is an apocalyptic number.

It is an amenable number.

23685463968 is an abundant number, since it is smaller than the sum of its proper divisors (38801363232).

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

23685463968 is a wasteful number, since it uses less digits than its factorization.

23685463968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1240029 (or 1240021 counting only the distinct ones).

The product of its digits is 44789760, while the sum is 60.

The spelling of 23685463968 in words is "twenty-three billion, six hundred eighty-five million, four hundred sixty-three thousand, nine hundred sixty-eight".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 199 398 597 796 1194 1592 2388 3184 4776 6368 9552 19104 1239817 2479634 3719451 4959268 7438902 9918536 14877804 19837072 29755608 39674144 59511216 119022432 246723583 493447166 740170749 986894332 1480341498 1973788664 2960682996 3947577328 5921365992 7895154656 11842731984 23685463968