Base | Representation |
---|---|
bin | 101100101010… |
… | …1010100001101 |
3 | 1122001202121222 |
4 | 1121111110031 |
5 | 21443340000 |
6 | 2153533125 |
7 | 403023263 |
oct | 131252415 |
9 | 48052558 |
10 | 23418125 |
11 | 12245425 |
12 | 7a141a5 |
13 | 4b0c1a3 |
14 | 3178433 |
15 | 20c8a85 |
hex | 165550d |
23418125 has 20 divisors (see below), whose sum is σ = 29662380. Its totient is φ = 18480000.
The previous prime is 23418091. The next prime is 23418133. The reversal of 23418125 is 52181432.
It can be written as a sum of positive squares in 10 ways, for example, as 23406244 + 11881 = 4838^2 + 109^2 .
It is not a de Polignac number, because 23418125 - 218 = 23155981 is a prime.
It is an alternating number because its digits alternate between even and odd.
It is a junction number, because it is equal to n+sod(n) for n = 23418094 and 23418103.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 55415 + ... + 55835.
It is an arithmetic number, because the mean of its divisors is an integer number (1483119).
Almost surely, 223418125 is an apocalyptic number.
23418125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.
It is an amenable number.
23418125 is a deficient number, since it is larger than the sum of its proper divisors (6244255).
23418125 is an frugal number, since it uses more digits than its factorization.
23418125 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 530 (or 515 counting only the distinct ones).
The product of its digits is 1920, while the sum is 26.
The square root of 23418125 is about 4839.2277276442. The cubic root of 23418125 is about 286.0996808063.
Adding to 23418125 its reverse (52181432), we get a palindrome (75599557).
The spelling of 23418125 in words is "twenty-three million, four hundred eighteen thousand, one hundred twenty-five".
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