Base | Representation |
---|---|
bin | 101100100111… |
… | …0001111110001 |
3 | 1122000021220112 |
4 | 1121032033301 |
5 | 21441423134 |
6 | 2153151105 |
7 | 402542666 |
oct | 131161761 |
9 | 48007815 |
10 | 23389169 |
11 | 122256a1 |
12 | 79bb495 |
13 | 4acbc5b |
14 | 316ba6d |
15 | 20c01ce |
hex | 164e3f1 |
23389169 has 4 divisors (see below), whose sum is σ = 23772660. Its totient is φ = 23005680.
The previous prime is 23389141. The next prime is 23389181. The reversal of 23389169 is 96198332.
It is a semiprime because it is the product of two primes.
It can be written as a sum of positive squares in 2 ways, for example, as 8334769 + 15054400 = 2887^2 + 3880^2 .
It is a cyclic number.
It is not a de Polignac number, because 23389169 - 28 = 23388913 is a prime.
It is a super-2 number, since 2×233891692 = 1094106453021122, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (23383169) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191654 + ... + 191775.
It is an arithmetic number, because the mean of its divisors is an integer number (5943165).
Almost surely, 223389169 is an apocalyptic number.
It is an amenable number.
23389169 is a deficient number, since it is larger than the sum of its proper divisors (383491).
23389169 is an equidigital number, since it uses as much as digits as its factorization.
23389169 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 383490.
The product of its digits is 69984, while the sum is 41.
The square root of 23389169 is about 4836.2350025614. The cubic root of 23389169 is about 285.9817135031.
The spelling of 23389169 in words is "twenty-three million, three hundred eighty-nine thousand, one hundred sixty-nine".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.068 sec. • engine limits •