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23033012320 = 255143956327
BaseRepresentation
bin10101011100110111…
…111110000001100000
32012110012200020222101
4111130313332001200
5334132422343240
614325313220144
71443531242263
oct253467760140
965405606871
1023033012320
11984a59807a
124569861654
132230b7a296
141187042cda
158ec18139a
hex55cdfe060

23033012320 has 24 divisors (see below), whose sum is σ = 54415491984. Its totient is φ = 9213204864.

The previous prime is 23033012311. The next prime is 23033012323. The reversal of 23033012320 is 2321033032.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23033012323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71978004 + ... + 71978323.

It is an arithmetic number, because the mean of its divisors is an integer number (2267312166).

Almost surely, 223033012320 is an apocalyptic number.

23033012320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23033012320 is an abundant number, since it is smaller than the sum of its proper divisors (31382479664).

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

23033012320 is a wasteful number, since it uses less digits than its factorization.

23033012320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143956342 (or 143956334 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 23033012320 its reverse (2321033032), we get a palindrome (25354045352).

The spelling of 23033012320 in words is "twenty-three billion, thirty-three million, twelve thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 143956327 287912654 575825308 719781635 1151650616 1439563270 2303301232 2879126540 4606602464 5758253080 11516506160 23033012320