Base | Representation |
---|---|
bin | 101011111001… |
… | …0010001000111 |
3 | 1121022011002222 |
4 | 1113302101013 |
5 | 21342344143 |
6 | 2141122555 |
7 | 366413420 |
oct | 127622107 |
9 | 47264088 |
10 | 23012423 |
11 | 11a98635 |
12 | 785945b |
13 | 49c9625 |
14 | 30b0647 |
15 | 2048768 |
hex | 15f2447 |
23012423 has 16 divisors (see below), whose sum is σ = 26960640. Its totient is φ = 19236096.
The previous prime is 23012411. The next prime is 23012453. The reversal of 23012423 is 32421032.
It is a cyclic number.
It is not a de Polignac number, because 23012423 - 216 = 22946887 is a prime.
It is a super-2 number, since 2×230124232 = 1059143224661858, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23012453) 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 15 ways as a sum of consecutive naturals, for example, 65015 + ... + 65367.
It is an arithmetic number, because the mean of its divisors is an integer number (1685040).
Almost surely, 223012423 is an apocalyptic number.
23012423 is a deficient number, since it is larger than the sum of its proper divisors (3948217).
23012423 is a wasteful number, since it uses less digits than its factorization.
23012423 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 566.
The product of its (nonzero) digits is 288, while the sum is 17.
The square root of 23012423 is about 4797.1265357503. The cubic root of 23012423 is about 284.4378907396.
Adding to 23012423 its reverse (32421032), we get a palindrome (55433455).
The spelling of 23012423 in words is "twenty-three million, twelve thousand, four hundred twenty-three".
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