Base | Representation |
---|---|
bin | 101011111000… |
… | …1011011010011 |
3 | 1121021222101102 |
4 | 1113301123103 |
5 | 21342241404 |
6 | 2141055015 |
7 | 366400400 |
oct | 127613323 |
9 | 47258342 |
10 | 23008979 |
11 | 11a95a94 |
12 | 785746b |
13 | 49c7ba6 |
14 | 30ad2a7 |
15 | 204771e |
hex | 15f16d3 |
23008979 has 12 divisors (see below), whose sum is σ = 26855208. Its totient is φ = 19656000.
The previous prime is 23008969. The next prime is 23009023. The reversal of 23008979 is 97980032.
It is not a de Polignac number, because 23008979 - 24 = 23008963 is a prime.
It is a super-2 number, since 2×230089792 = 1058826229244882, which contains 22 as substring.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (23008949) 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, 19064 + ... + 20234.
It is an arithmetic number, because the mean of its divisors is an integer number (2237934).
Almost surely, 223008979 is an apocalyptic number.
23008979 is a deficient number, since it is larger than the sum of its proper divisors (3846229).
23008979 is a wasteful number, since it uses less digits than its factorization.
23008979 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1586 (or 1579 counting only the distinct ones).
The product of its (nonzero) digits is 27216, while the sum is 38.
The square root of 23008979 is about 4796.7675574286. The cubic root of 23008979 is about 284.4237005351.
The spelling of 23008979 in words is "twenty-three million, eight thousand, nine hundred seventy-nine".
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