Base | Representation |
---|---|
bin | 101100011010… |
… | …1000011011100 |
3 | 1121211001100201 |
4 | 1120311003130 |
5 | 21430122410 |
6 | 2151033244 |
7 | 401633104 |
oct | 130650334 |
9 | 47731321 |
10 | 23285980 |
11 | 12165113 |
12 | 796b824 |
13 | 4a93cb3 |
14 | 3142204 |
15 | 209e83a |
hex | 16350dc |
23285980 has 24 divisors (see below), whose sum is σ = 49002912. Its totient is φ = 9294912.
The previous prime is 23285953. The next prime is 23285981. The reversal of 23285980 is 8958232.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23285981) 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, 12169 + ... + 13951.
It is an arithmetic number, because the mean of its divisors is an integer number (2041788).
Almost surely, 223285980 is an apocalyptic number.
23285980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
23285980 is an abundant number, since it is smaller than the sum of its proper divisors (25716932).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23285980 is a wasteful number, since it uses less digits than its factorization.
23285980 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2445 (or 2443 counting only the distinct ones).
The product of its (nonzero) digits is 34560, while the sum is 37.
The square root of 23285980 is about 4825.5548903727. The cubic root of 23285980 is about 285.5605260773.
The spelling of 23285980 in words is "twenty-three million, two hundred eighty-five thousand, nine hundred eighty".
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