Base | Representation |
---|---|
bin | 101100011101… |
… | …0111110010111 |
3 | 1121212021121220 |
4 | 1120322332113 |
5 | 21431411411 |
6 | 2151341423 |
7 | 402063600 |
oct | 130727627 |
9 | 47767556 |
10 | 23310231 |
11 | 1218135a |
12 | 7981873 |
13 | 4aa2049 |
14 | 314ada7 |
15 | 20a6b06 |
hex | 163af97 |
23310231 has 12 divisors (see below), whose sum is σ = 36154872. Its totient is φ = 13320048.
The previous prime is 23310211. The next prime is 23310241. The reversal of 23310231 is 13201332.
It is not a de Polignac number, because 23310231 - 210 = 23309207 is a prime.
It is a super-2 number, since 2×233102312 = 1086733738546722, 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 23310231.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23310211) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79140 + ... + 79433.
It is an arithmetic number, because the mean of its divisors is an integer number (3012906).
Almost surely, 223310231 is an apocalyptic number.
23310231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.
23310231 is a deficient number, since it is larger than the sum of its proper divisors (12844641).
23310231 is a wasteful number, since it uses less digits than its factorization.
23310231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 158590 (or 158583 counting only the distinct ones).
The product of its (nonzero) digits is 108, while the sum is 15.
The square root of 23310231 is about 4828.0670045060. The cubic root of 23310231 is about 285.6596232689.
Adding to 23310231 its reverse (13201332), we get a palindrome (36511563).
The spelling of 23310231 in words is "twenty-three million, three hundred ten thousand, two hundred thirty-one".
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