Base | Representation |
---|---|
bin | 101100010100… |
… | …0011011101001 |
3 | 1121201102102221 |
4 | 1120220123221 |
5 | 21421444111 |
6 | 2145554041 |
7 | 401326300 |
oct | 130503351 |
9 | 47642387 |
10 | 23234281 |
11 | 1212a294 |
12 | 7945921 |
13 | 4a765c5 |
14 | 312b437 |
15 | 208e371 |
hex | 16286e9 |
23234281 has 6 divisors (see below), whose sum is σ = 27027690. Its totient is φ = 19915056.
The previous prime is 23234279. The next prime is 23234311. The reversal of 23234281 is 18243232.
It can be written as a sum of positive squares in only one way, i.e., 16883881 + 6350400 = 4109^2 + 2520^2 .
It is not a de Polignac number, because 23234281 - 21 = 23234279 is a prime.
It is a super-2 number, since 2×232342812 = 1079663627173922, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (23234201) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 237036 + ... + 237133.
It is an arithmetic number, because the mean of its divisors is an integer number (4504615).
Almost surely, 223234281 is an apocalyptic number.
It is an amenable number.
23234281 is a deficient number, since it is larger than the sum of its proper divisors (3793409).
23234281 is an equidigital number, since it uses as much as digits as its factorization.
23234281 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 474183 (or 474176 counting only the distinct ones).
The product of its digits is 2304, while the sum is 25.
The square root of 23234281 is about 4820.1951205319. The cubic root of 23234281 is about 285.3490378374.
The spelling of 23234281 in words is "twenty-three million, two hundred thirty-four thousand, two hundred eighty-one".
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