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23905368825 = 3521324518327
BaseRepresentation
bin10110010000110111…
…101111101011111001
32021201000011120010120
4112100313233223321
5342424233300300
614552035003453
71504253165562
oct262067575371
967630146116
1023905368825
11a157a59468
124771a39589
13233c815470
14122ac45169
1594da4c3a0
hex590defaf9

23905368825 has 24 divisors (see below), whose sum is σ = 42563817408. Its totient is φ = 11768796480.

The previous prime is 23905368779. The next prime is 23905368829. The reversal of 23905368825 is 52886350932.

It is not a de Polignac number, because 23905368825 - 28 = 23905368569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23905368829) 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, 12258189 + ... + 12260138.

It is an arithmetic number, because the mean of its divisors is an integer number (1773492392).

Almost surely, 223905368825 is an apocalyptic number.

23905368825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23905368825 is a deficient number, since it is larger than the sum of its proper divisors (18658448583).

23905368825 is a wasteful number, since it uses less digits than its factorization.

23905368825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24518353 (or 24518348 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 51.

The spelling of 23905368825 in words is "twenty-three billion, nine hundred five million, three hundred sixty-eight thousand, eight hundred twenty-five".

Divisors: 1 3 5 13 15 25 39 65 75 195 325 975 24518327 73554981 122591635 318738251 367774905 612958175 956214753 1593691255 1838874525 4781073765 7968456275 23905368825