Base | Representation |
---|---|
bin | 101011111000… |
… | …1010011101011 |
3 | 1121021221201100 |
4 | 1113301103223 |
5 | 21342232431 |
6 | 2141052443 |
7 | 366366102 |
oct | 127612353 |
9 | 47257640 |
10 | 23008491 |
11 | 11a95690 |
12 | 7857123 |
13 | 49c78bc |
14 | 30ad039 |
15 | 20474e6 |
hex | 15f14eb |
23008491 has 12 divisors (see below), whose sum is σ = 36255960. Its totient is φ = 13944480.
The previous prime is 23008409. The next prime is 23008549. The reversal of 23008491 is 19480032.
It is not a de Polignac number, because 23008491 - 214 = 22992107 is a prime.
It is not an unprimeable number, because it can be changed into a prime (23008891) 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, 116106 + ... + 116303.
It is an arithmetic number, because the mean of its divisors is an integer number (3021330).
Almost surely, 223008491 is an apocalyptic number.
23008491 is a deficient number, since it is larger than the sum of its proper divisors (13247469).
23008491 is a wasteful number, since it uses less digits than its factorization.
23008491 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 232426 (or 232423 counting only the distinct ones).
The product of its (nonzero) digits is 1728, while the sum is 27.
The square root of 23008491 is about 4796.7166895701. The cubic root of 23008491 is about 284.4216897295.
The spelling of 23008491 in words is "twenty-three million, eight thousand, four hundred ninety-one".
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