Base | Representation |
---|---|
bin | 101101101010… |
… | …1000101001001 |
3 | 1200001100111100 |
4 | 1123111011021 |
5 | 22112111244 |
6 | 2213052013 |
7 | 410333100 |
oct | 133250511 |
9 | 50040440 |
10 | 23941449 |
11 | 12572624 |
12 | 8027009 |
13 | 4c6344c |
14 | 3273037 |
15 | 217db69 |
hex | 16d5149 |
23941449 has 27 divisors (see below), whose sum is σ = 40401543. Its totient is φ = 13622112.
The previous prime is 23941447. The next prime is 23941453. The reversal of 23941449 is 94414932.
The square root of 23941449 is 4893.
It is a perfect power (a square), and thus also a powerful number.
23941449 is a `hidden beast` number, since 239 + 414 + 4 + 9 = 666.
It can be written as a sum of positive squares in only one way, i.e., 4862025 + 19079424 = 2205^2 + 4368^2 .
It is not a de Polignac number, because 23941449 - 21 = 23941447 is a prime.
It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.
Its product of digits (31104) is a multiple of the sum of its prime divisors (243).
It is not an unprimeable number, because it can be changed into a prime (23941441) by changing a digit.
It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 102637 + ... + 102869.
Almost surely, 223941449 is an apocalyptic number.
23941449 is the 4893-rd square number.
23941449 is the 2447-th centered octagonal number.
It is an amenable number.
23941449 is a deficient number, since it is larger than the sum of its proper divisors (16460094).
23941449 is an equidigital number, since it uses as much as digits as its factorization.
23941449 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 486 (or 243 counting only the distinct ones).
The product of its digits is 31104, while the sum is 36.
The cubic root of 23941449 is about 288.2151531745.
Multiplying 23941449 by its sum of digits (36), we get a square (861892164 = 293582).
The spelling of 23941449 in words is "twenty-three million, nine hundred forty-one thousand, four hundred forty-nine".
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