Base | Representation |
---|---|
bin | 101100000100… |
… | …1101010000111 |
3 | 1121111000112102 |
4 | 1120021222013 |
5 | 21403430411 |
6 | 2143142315 |
7 | 400262636 |
oct | 130115207 |
9 | 47430472 |
10 | 23108231 |
11 | 12053613 |
12 | 78a499b |
13 | 4a31113 |
14 | 30d751d |
15 | 2066d3b |
hex | 1609a87 |
23108231 has 2 divisors, whose sum is σ = 23108232. Its totient is φ = 23108230.
The previous prime is 23108221. The next prime is 23108249. The reversal of 23108231 is 13280132.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 23108231 - 26 = 23108167 is a prime.
It is a super-2 number, since 2×231082312 = 1067980679898722, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (23108221) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11554115 + 11554116.
It is an arithmetic number, because the mean of its divisors is an integer number (11554116).
Almost surely, 223108231 is an apocalyptic number.
23108231 is a deficient number, since it is larger than the sum of its proper divisors (1).
23108231 is an equidigital number, since it uses as much as digits as its factorization.
23108231 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 288, while the sum is 20.
The square root of 23108231 is about 4807.1021416234. The cubic root of 23108231 is about 284.8320791873.
Adding to 23108231 its reverse (13280132), we get a palindrome (36388363).
The spelling of 23108231 in words is "twenty-three million, one hundred eight thousand, two hundred thirty-one".
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