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23320313312 = 251742868223
BaseRepresentation
bin10101101101111111…
…111011110111100000
32020012020021122211212
4111231333323313200
5340230000011222
614414015125252
71453620251432
oct255577736740
966166248755
1023320313312
11998778860a
124629b13828
13227854cb7a
1411b326c652
159174d26e2
hex56dffbde0

23320313312 has 24 divisors (see below), whose sum is σ = 48612566016. Its totient is φ = 10974264832.

The previous prime is 23320313299. The next prime is 23320313323. The reversal of 23320313312 is 21331302332.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21433568 + ... + 21434655.

It is an arithmetic number, because the mean of its divisors is an integer number (2025523584).

Almost surely, 223320313312 is an apocalyptic number.

It is an amenable number.

23320313312 is an abundant number, since it is smaller than the sum of its proper divisors (25292252704).

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

23320313312 is a wasteful number, since it uses less digits than its factorization.

23320313312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42868250 (or 42868242 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 23320313312 its reverse (21331302332), we get a palindrome (44651615644).

The spelling of 23320313312 in words is "twenty-three billion, three hundred twenty million, three hundred thirteen thousand, three hundred twelve".

Divisors: 1 2 4 8 16 17 32 34 68 136 272 544 42868223 85736446 171472892 342945784 685891568 728759791 1371783136 1457519582 2915039164 5830078328 11660156656 23320313312