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23968621720 = 2351128753089
BaseRepresentation
bin10110010100101001…
…000010010010011000
32021212102012010210101
4112110221002102120
5343041431343340
615002214425144
71505651631421
oct262451022230
967772163711
1023968621720
11a18a73128a
12478b0621b4
13234c960c04
1412353cc648
15954393c9a
hex594a42498

23968621720 has 32 divisors (see below), whose sum is σ = 53935192800. Its totient is φ = 9586418688.

The previous prime is 23968621711. The next prime is 23968621739. The reversal of 23968621720 is 2712686932.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 424936 + ... + 478024.

It is an arithmetic number, because the mean of its divisors is an integer number (1685474775).

Almost surely, 223968621720 is an apocalyptic number.

23968621720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23968621720 is an abundant number, since it is smaller than the sum of its proper divisors (29966571080).

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

23968621720 is a wasteful number, since it uses less digits than its factorization.

23968621720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64387 (or 64383 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 46.

The spelling of 23968621720 in words is "twenty-three billion, nine hundred sixty-eight million, six hundred twenty-one thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 11287 22574 45148 53089 56435 90296 106178 112870 212356 225740 265445 424712 451480 530890 1061780 2123560 599215543 1198431086 2396862172 2996077715 4793724344 5992155430 11984310860 23968621720