Base | Representation |
---|---|
bin | 101100010011… |
… | …1011100110101 |
3 | 1121201012221001 |
4 | 1120213130311 |
5 | 21421332021 |
6 | 2145523301 |
7 | 401311465 |
oct | 130473465 |
9 | 47635831 |
10 | 23230261 |
11 | 1212726a |
12 | 7943531 |
13 | 4a74822 |
14 | 3129ba5 |
15 | 208d091 |
hex | 1627735 |
23230261 has 2 divisors, whose sum is σ = 23230262. Its totient is φ = 23230260.
The previous prime is 23230243. The next prime is 23230297. The reversal of 23230261 is 16203232.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 17589636 + 5640625 = 4194^2 + 2375^2 .
It is a cyclic number.
It is not a de Polignac number, because 23230261 - 217 = 23099189 is a prime.
It is a super-2 number, since 2×232302612 = 1079290052256242, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (23230061) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11615130 + 11615131.
It is an arithmetic number, because the mean of its divisors is an integer number (11615131).
Almost surely, 223230261 is an apocalyptic number.
It is an amenable number.
23230261 is a deficient number, since it is larger than the sum of its proper divisors (1).
23230261 is an equidigital number, since it uses as much as digits as its factorization.
23230261 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 432, while the sum is 19.
The square root of 23230261 is about 4819.7781069257. The cubic root of 23230261 is about 285.3325798388.
Adding to 23230261 its reverse (16203232), we get a palindrome (39433493).
The spelling of 23230261 in words is "twenty-three million, two hundred thirty thousand, two hundred sixty-one".
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