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23394770920 = 2354313601611
BaseRepresentation
bin10101110010011011…
…111101111111101000
32020101102101111111001
4111302123331333220
5340403030132140
614425235044344
71455513162133
oct256233757750
966342344431
1023394770920
119a15813724
12464aa406b4
13228aabc621
1411bd0d121a
1591dcdde9a
hex5726fdfe8

23394770920 has 32 divisors (see below), whose sum is σ = 53862383520. Its totient is φ = 9140281920.

The previous prime is 23394770891. The next prime is 23394770953. The reversal of 23394770920 is 2907749332.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6799086 + ... + 6802525.

It is an arithmetic number, because the mean of its divisors is an integer number (1683199485).

Almost surely, 223394770920 is an apocalyptic number.

23394770920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23394770920 is an abundant number, since it is smaller than the sum of its proper divisors (30467612600).

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

23394770920 is a wasteful number, since it uses less digits than its factorization.

23394770920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13601665 (or 13601661 counting only the distinct ones).

The product of its (nonzero) digits is 571536, while the sum is 46.

The spelling of 23394770920 in words is "twenty-three billion, three hundred ninety-four million, seven hundred seventy thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 43 86 172 215 344 430 860 1720 13601611 27203222 54406444 68008055 108812888 136016110 272032220 544064440 584869273 1169738546 2339477092 2924346365 4678954184 5848692730 11697385460 23394770920