Base | Representation |
---|---|
bin | 101011110111… |
… | …1110001110111 |
3 | 1121021122010111 |
4 | 1113233301313 |
5 | 21342032411 |
6 | 2141003451 |
7 | 366341620 |
oct | 127576167 |
9 | 47248114 |
10 | 23002231 |
11 | 11a90a0a |
12 | 7853587 |
13 | 49c4ab5 |
14 | 30aaa47 |
15 | 2045721 |
hex | 15efc77 |
23002231 has 8 divisors (see below), whose sum is σ = 27431424. Its totient is φ = 18858840.
The previous prime is 23002201. The next prime is 23002237. The reversal of 23002231 is 13220032.
It is a happy number.
23002231 is nontrivially palindromic in base 12.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 23002231 - 223 = 14613623 is a prime.
It is a super-2 number, since 2×230022312 = 1058205261954722, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23002237) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71275 + ... + 71596.
It is an arithmetic number, because the mean of its divisors is an integer number (3428928).
Almost surely, 223002231 is an apocalyptic number.
23002231 is a deficient number, since it is larger than the sum of its proper divisors (4429193).
23002231 is a wasteful number, since it uses less digits than its factorization.
23002231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 142901.
The product of its (nonzero) digits is 72, while the sum is 13.
The square root of 23002231 is about 4796.0641155014. The cubic root of 23002231 is about 284.3958928578.
Adding to 23002231 its reverse (13220032), we get a palindrome (36222263).
The spelling of 23002231 in words is "twenty-three million, two thousand, two hundred thirty-one".
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