Base | Representation |
---|---|
bin | 101100000001… |
… | …1000000011001 |
3 | 1121102122011022 |
4 | 1120003000121 |
5 | 21402042420 |
6 | 2142412225 |
7 | 400120334 |
oct | 130030031 |
9 | 47378138 |
10 | 23080985 |
11 | 120350a4 |
12 | 7891075 |
13 | 4a218b5 |
14 | 30cb61b |
15 | 205dc25 |
hex | 1603019 |
23080985 has 12 divisors (see below), whose sum is σ = 29424108. Its totient is φ = 17377536.
The previous prime is 23080973. The next prime is 23080987. The reversal of 23080985 is 58908032.
23080985 is nontrivially palindromic in base 8.
It can be written as a sum of positive squares in 6 ways, for example, as 2758921 + 20322064 = 1661^2 + 4508^2 .
It is a de Polignac number, because none of the positive numbers 2k-23080985 is a prime.
It is a Duffinian number.
It is a Curzon number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (23080987) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6542 + ... + 9431.
It is an arithmetic number, because the mean of its divisors is an integer number (2452009).
Almost surely, 223080985 is an apocalyptic number.
It is an amenable number.
23080985 is a deficient number, since it is larger than the sum of its proper divisors (6343123).
23080985 is a wasteful number, since it uses less digits than its factorization.
23080985 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 16012 (or 15995 counting only the distinct ones).
The product of its (nonzero) digits is 17280, while the sum is 35.
The square root of 23080985 is about 4804.2673739083. The cubic root of 23080985 is about 284.7200904205.
The spelling of 23080985 in words is "twenty-three million, eighty thousand, nine hundred eighty-five".
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