Base | Representation |
---|---|
bin | 101100001101… |
… | …1011010101111 |
3 | 1121121201022122 |
4 | 1120123122233 |
5 | 21413242400 |
6 | 2144503155 |
7 | 401015006 |
oct | 130333257 |
9 | 47551278 |
10 | 23180975 |
11 | 120a3234 |
12 | 791aabb |
13 | 4a5826c |
14 | 3115c3d |
15 | 207d685 |
hex | 161b6af |
23180975 has 12 divisors (see below), whose sum is σ = 28812144. Its totient is φ = 18501120.
The previous prime is 23180959. The next prime is 23181001. The reversal of 23180975 is 57908132.
It is not a de Polignac number, because 23180975 - 24 = 23180959 is a prime.
It is a Duffinian number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13622 + ... + 15228.
It is an arithmetic number, because the mean of its divisors is an integer number (2401012).
Almost surely, 223180975 is an apocalyptic number.
23180975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
23180975 is a deficient number, since it is larger than the sum of its proper divisors (5631169).
23180975 is a wasteful number, since it uses less digits than its factorization.
23180975 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2194 (or 2189 counting only the distinct ones).
The product of its (nonzero) digits is 15120, while the sum is 35.
The square root of 23180975 is about 4814.6625011521. The cubic root of 23180975 is about 285.1306469851.
The spelling of 23180975 in words is "twenty-three million, one hundred eighty thousand, nine hundred seventy-five".
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