Base | Representation |
---|---|
bin | 101011111001… |
… | …0011010000101 |
3 | 1121022011220020 |
4 | 1113302122011 |
5 | 21342403442 |
6 | 2141125353 |
7 | 366415200 |
oct | 127623205 |
9 | 47264806 |
10 | 23012997 |
11 | 11a99007 |
12 | 7859859 |
13 | 49c9977 |
14 | 30b0937 |
15 | 20489ec |
hex | 15f2685 |
23012997 has 24 divisors (see below), whose sum is σ = 36115200. Its totient is φ = 12995136.
The previous prime is 23012993. The next prime is 23013007. The reversal of 23012997 is 79921032.
It is not a de Polignac number, because 23012997 - 22 = 23012993 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23012993) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12204 + ... + 13962.
It is an arithmetic number, because the mean of its divisors is an integer number (1504800).
Almost surely, 223012997 is an apocalyptic number.
It is an amenable number.
23012997 is a deficient number, since it is larger than the sum of its proper divisors (13102203).
23012997 is a wasteful number, since it uses less digits than its factorization.
23012997 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1865 (or 1858 counting only the distinct ones).
The product of its (nonzero) digits is 6804, while the sum is 33.
The square root of 23012997 is about 4797.1863628590. The cubic root of 23012997 is about 284.4402556361.
The spelling of 23012997 in words is "twenty-three million, twelve thousand, nine hundred ninety-seven".
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