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23312895980 = 22511105967709
BaseRepresentation
bin10101101101100011…
…101000111111101100
32020011201022211011212
4111231203220333230
5340221100132410
614413152133552
71453500226523
oct255543507754
966151284155
1023312895980
119983581890
1246275372b8
132276b53a0a
1411b229b4ba
15916a19b05
hex56d8e8fec

23312895980 has 24 divisors (see below), whose sum is σ = 53407725840. Its totient is φ = 8477416640.

The previous prime is 23312895973. The next prime is 23312895989. The reversal of 23312895980 is 8959821332.

It is a super-2 number, since 2×233128959802 (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23312895989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52983635 + ... + 52984074.

It is an arithmetic number, because the mean of its divisors is an integer number (2225321910).

Almost surely, 223312895980 is an apocalyptic number.

23312895980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23312895980 is an abundant number, since it is smaller than the sum of its proper divisors (30094829860).

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

23312895980 is a wasteful number, since it uses less digits than its factorization.

23312895980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105967729 (or 105967727 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 50.

The spelling of 23312895980 in words is "twenty-three billion, three hundred twelve million, eight hundred ninety-five thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 105967709 211935418 423870836 529838545 1059677090 1165644799 2119354180 2331289598 4662579196 5828223995 11656447990 23312895980