Base | Representation |
---|---|
bin | 101100010011… |
… | …1011010110011 |
3 | 1121201012202020 |
4 | 1120213122303 |
5 | 21421331011 |
6 | 2145522523 |
7 | 401311221 |
oct | 130473263 |
9 | 47635666 |
10 | 23230131 |
11 | 12127161 |
12 | 7943443 |
13 | 4a74752 |
14 | 3129b11 |
15 | 208d006 |
hex | 16276b3 |
23230131 has 16 divisors (see below), whose sum is σ = 32292000. Its totient is φ = 14835968.
The previous prime is 23230127. The next prime is 23230139. The reversal of 23230131 is 13103232.
It is a cyclic number.
It is not a de Polignac number, because 23230131 - 22 = 23230127 is a prime.
It is a super-2 number, since 2×232301312 = 1079277972554322, which contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 23230131.
It is not an unprimeable number, because it can be changed into a prime (23230139) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10945 + ... + 12893.
It is an arithmetic number, because the mean of its divisors is an integer number (2018250).
Almost surely, 223230131 is an apocalyptic number.
23230131 is a deficient number, since it is larger than the sum of its proper divisors (9061869).
23230131 is a wasteful number, since it uses less digits than its factorization.
23230131 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2118.
The product of its (nonzero) digits is 108, while the sum is 15.
The square root of 23230131 is about 4819.7646208088. The cubic root of 23230131 is about 285.3320475833.
Adding to 23230131 its reverse (13103232), we get a palindrome (36333363).
The spelling of 23230131 in words is "twenty-three million, two hundred thirty thousand, one hundred thirty-one".
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