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23378020953 = 3741108724979
BaseRepresentation
bin10101110001011100…
…000100101001011001
32020100020212111211220
4111301130010221121
5340334233132303
614423440042253
71455220620330
oct256134045131
966306774756
1023378020953
119a07313181
124645303389
1322874a65c1
1411babb0d17
1591c5d1053
hex571704a59

23378020953 has 32 divisors (see below), whose sum is σ = 36527554560. Its totient is φ = 13020531840.

The previous prime is 23378020943. The next prime is 23378020957. The reversal of 23378020953 is 35902087332.

It is not a de Polignac number, because 23378020953 - 25 = 23378020921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23378020957) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 923418 + ... + 948396.

It is an arithmetic number, because the mean of its divisors is an integer number (1141486080).

Almost surely, 223378020953 is an apocalyptic number.

It is an amenable number.

23378020953 is a deficient number, since it is larger than the sum of its proper divisors (13149533607).

23378020953 is a wasteful number, since it uses less digits than its factorization.

23378020953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26117.

The product of its (nonzero) digits is 272160, while the sum is 42.

The spelling of 23378020953 in words is "twenty-three billion, three hundred seventy-eight million, twenty thousand, nine hundred fifty-three".

Divisors: 1 3 7 21 41 123 287 861 1087 3261 7609 22827 24979 44567 74937 133701 174853 311969 524559 935907 1024139 3072417 7168973 21506919 27152173 81456519 190065211 570195633 1113239093 3339717279 7792673651 23378020953