Base | Representation |
---|---|
bin | 101100000100… |
… | …0110000010010 |
3 | 1121110211110100 |
4 | 1120020300102 |
5 | 21403321110 |
6 | 2143113230 |
7 | 400246101 |
oct | 130106022 |
9 | 47424410 |
10 | 23104530 |
11 | 12050859 |
12 | 78a2816 |
13 | 4a2c527 |
14 | 30d6038 |
15 | 2065bc0 |
hex | 1608c12 |
23104530 has 48 divisors (see below), whose sum is σ = 63609624. Its totient is φ = 5798400.
The previous prime is 23104519. The next prime is 23104537. The reversal of 23104530 is 3540132.
It can be written as a sum of positive squares in 4 ways, for example, as 17214201 + 5890329 = 4149^2 + 2427^2 .
It is a Harshad number since it is a multiple of its sum of digits (18).
It is not an unprimeable number, because it can be changed into a prime (23104537) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6021 + ... + 9080.
Almost surely, 223104530 is an apocalyptic number.
23104530 is an abundant number, since it is smaller than the sum of its proper divisors (40505094).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23104530 is a wasteful number, since it uses less digits than its factorization.
23104530 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 15131 (or 15128 counting only the distinct ones).
The product of its (nonzero) digits is 360, while the sum is 18.
The square root of 23104530 is about 4806.7171749542. The cubic root of 23104530 is about 284.8168721988.
Adding to 23104530 its reverse (3540132), we get a palindrome (26644662).
The spelling of 23104530 in words is "twenty-three million, one hundred four thousand, five hundred thirty".
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