Base | Representation |
---|---|
bin | 101100001011… |
… | …0011010111001 |
3 | 1121120200020111 |
4 | 1120112122321 |
5 | 21412114010 |
6 | 2144224321 |
7 | 400601224 |
oct | 130263271 |
9 | 47520214 |
10 | 23160505 |
11 | 12089915 |
12 | 790b0a1 |
13 | 4a4bb54 |
14 | 310c5bb |
15 | 207758a |
hex | 16166b9 |
23160505 has 8 divisors (see below), whose sum is σ = 27822600. Its totient is φ = 18508416.
The previous prime is 23160499. The next prime is 23160521. The reversal of 23160505 is 50506132.
It is a happy number.
It can be written as a sum of positive squares in 4 ways, for example, as 12766329 + 10394176 = 3573^2 + 3224^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 23160505 - 23 = 23160497 is a prime.
It is an unprimeable number.
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 7 ways as a sum of consecutive naturals, for example, 4261 + ... + 8029.
It is an arithmetic number, because the mean of its divisors is an integer number (3477825).
Almost surely, 223160505 is an apocalyptic number.
It is an amenable number.
23160505 is a deficient number, since it is larger than the sum of its proper divisors (4662095).
23160505 is a wasteful number, since it uses less digits than its factorization.
23160505 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5003.
The product of its (nonzero) digits is 900, while the sum is 22.
The square root of 23160505 is about 4812.5362336298. The cubic root of 23160505 is about 285.0466938985.
Adding to 23160505 its reverse (50506132), we get a palindrome (73666637).
The spelling of 23160505 in words is "twenty-three million, one hundred sixty thousand, five hundred five".
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