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23320431320 = 235583010783
BaseRepresentation
bin10101101110000000…
…011000101011011000
32020012020111122201112
4111232000120223120
5340230012300240
614414021435452
71453621252454
oct255600305330
966166448645
1023320431320
11998785923a
124629b6bb88
1322785917b4
1411b329d664
15917507665
hex56e018ad8

23320431320 has 16 divisors (see below), whose sum is σ = 52470970560. Its totient is φ = 9328172512.

The previous prime is 23320431317. The next prime is 23320431347. The reversal of 23320431320 is 2313402332.

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, 291505352 + ... + 291505431.

It is an arithmetic number, because the mean of its divisors is an integer number (3279435660).

Almost surely, 223320431320 is an apocalyptic number.

23320431320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23320431320 is an abundant number, since it is smaller than the sum of its proper divisors (29150539240).

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

23320431320 is a wasteful number, since it uses less digits than its factorization.

23320431320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583010794 (or 583010790 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 23320431320 its reverse (2313402332), we get a palindrome (25633833652).

The spelling of 23320431320 in words is "twenty-three billion, three hundred twenty million, four hundred thirty-one thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 583010783 1166021566 2332043132 2915053915 4664086264 5830107830 11660215660 23320431320