Base | Representation |
---|---|
bin | 101100011100… |
… | …1011100101100 |
3 | 1121211222001101 |
4 | 1120321130230 |
5 | 21431211410 |
6 | 2151252444 |
7 | 402036430 |
oct | 130713454 |
9 | 47758041 |
10 | 23303980 |
11 | 12177697 |
12 | 797a124 |
13 | 4a9c24b |
14 | 31489c0 |
15 | 20a4d3a |
hex | 163972c |
23303980 has 24 divisors (see below), whose sum is σ = 55929888. Its totient is φ = 7989888.
The previous prime is 23303953. The next prime is 23304041. The reversal of 23303980 is 8930332.
It is a happy number.
It is a Harshad number since it is a multiple of its sum of digits (28).
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83089 + ... + 83368.
It is an arithmetic number, because the mean of its divisors is an integer number (2330412).
Almost surely, 223303980 is an apocalyptic number.
23303980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
23303980 is an abundant number, since it is smaller than the sum of its proper divisors (32625908).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23303980 is a wasteful number, since it uses less digits than its factorization.
23303980 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 166473 (or 166471 counting only the distinct ones).
The product of its (nonzero) digits is 3888, while the sum is 28.
The square root of 23303980 is about 4827.4196005734. The cubic root of 23303980 is about 285.6340862998.
The spelling of 23303980 in words is "twenty-three million, three hundred three thousand, nine hundred eighty".
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