Base | Representation |
---|---|
bin | 101011111010… |
… | …1111110101111 |
3 | 1121022220222020 |
4 | 1113311332233 |
5 | 21343341011 |
6 | 2141321223 |
7 | 366505644 |
oct | 127657657 |
9 | 47286866 |
10 | 23027631 |
11 | 11aa9000 |
12 | 7866213 |
13 | 4a03523 |
14 | 30b5dcb |
15 | 204d006 |
hex | 15f5faf |
23027631 has 32 divisors (see below), whose sum is σ = 34667520. Its totient is φ = 13590720.
The previous prime is 23027629. The next prime is 23027647. The reversal of 23027631 is 13672032.
It is not a de Polignac number, because 23027631 - 21 = 23027629 is a prime.
It is a super-2 number, since 2×230276312 = 1060543578944322, which contains 22 as substring.
It is a zygodrome in base 4.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23027621) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 291450 + ... + 291528.
It is an arithmetic number, because the mean of its divisors is an integer number (1083360).
Almost surely, 223027631 is an apocalyptic number.
23027631 is a deficient number, since it is larger than the sum of its proper divisors (11639889).
23027631 is an equidigital number, since it uses as much as digits as its factorization.
23027631 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 188 (or 166 counting only the distinct ones).
The product of its (nonzero) digits is 1512, while the sum is 24.
The square root of 23027631 is about 4798.7113895295. The cubic root of 23027631 is about 284.5005348586.
Adding to 23027631 its reverse (13672032), we get a palindrome (36699663).
The spelling of 23027631 in words is "twenty-three million, twenty-seven thousand, six hundred thirty-one".
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