Base | Representation |
---|---|
bin | 101100000100… |
… | …1100110010010 |
3 | 1121111000012100 |
4 | 1120021212102 |
5 | 21403423421 |
6 | 2143141230 |
7 | 400262136 |
oct | 130114622 |
9 | 47430170 |
10 | 23107986 |
11 | 12053410 |
12 | 78a4816 |
13 | 4a30c85 |
14 | 30d73c6 |
15 | 2066c26 |
hex | 1609992 |
23107986 has 24 divisors (see below), whose sum is σ = 54619344. Its totient is φ = 7002360.
The previous prime is 23107967. The next prime is 23107991. The reversal of 23107986 is 68970132.
It is a self number, because there is not a number n which added to its sum of digits gives 23107986.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58156 + ... + 58551.
It is an arithmetic number, because the mean of its divisors is an integer number (2275806).
Almost surely, 223107986 is an apocalyptic number.
23107986 is an abundant number, since it is smaller than the sum of its proper divisors (31511358).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23107986 is a wasteful number, since it uses less digits than its factorization.
23107986 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 116726 (or 116723 counting only the distinct ones).
The product of its (nonzero) digits is 18144, while the sum is 36.
The square root of 23107986 is about 4807.0766584277. The cubic root of 23107986 is about 284.8310725603.
It can be divided in two parts, 2310 and 7986, that added together give a triangular number (10296 = T143).
The spelling of 23107986 in words is "twenty-three million, one hundred seven thousand, nine hundred eighty-six".
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