Base | Representation |
---|---|
bin | 101101100101… |
… | …1001011000100 |
3 | 1122222021211100 |
4 | 1123023023010 |
5 | 22104311433 |
6 | 2212140100 |
7 | 410103555 |
oct | 133131304 |
9 | 48867740 |
10 | 23900868 |
11 | 12545092 |
12 | 8007630 |
13 | 4c4ab34 |
14 | 326232c |
15 | 2171b13 |
hex | 16cb2c4 |
23900868 has 36 divisors (see below), whose sum is σ = 61893468. Its totient is φ = 7772160.
The previous prime is 23900831. The next prime is 23900893. The reversal of 23900868 is 86800932.
It can be written as a sum of positive squares in 2 ways, for example, as 13089924 + 10810944 = 3618^2 + 3288^2 .
It is a tau number, because it is divible by the number of its divisors (36).
It is a Harshad number since it is a multiple of its sum of digits (36).
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, 6621 + ... + 9572.
It is an arithmetic number, because the mean of its divisors is an integer number (1719263).
Almost surely, 223900868 is an apocalyptic number.
It is an amenable number.
23900868 is an abundant number, since it is smaller than the sum of its proper divisors (37992600).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23900868 is a wasteful number, since it uses less digits than its factorization.
23900868 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16244 (or 16239 counting only the distinct ones).
The product of its (nonzero) digits is 20736, while the sum is 36.
The square root of 23900868 is about 4888.8513988462. The cubic root of 23900868 is about 288.0522185407.
The spelling of 23900868 in words is "twenty-three million, nine hundred thousand, eight hundred sixty-eight".
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