Base | Representation |
---|---|
bin | 101011110111… |
… | …1100111101100 |
3 | 1121021121020101 |
4 | 1113233213230 |
5 | 21342022310 |
6 | 2141000444 |
7 | 366340000 |
oct | 127574754 |
9 | 47247211 |
10 | 23001580 |
11 | 11a90478 |
12 | 7853124 |
13 | 49c4704 |
14 | 30aa700 |
15 | 204543a |
hex | 15ef9ec |
23001580 has 60 divisors (see below), whose sum is σ = 56468160. Its totient is φ = 7869792.
The previous prime is 23001551. The next prime is 23001613. The reversal of 23001580 is 8510032.
It is a happy number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 47781 + ... + 48259.
It is an arithmetic number, because the mean of its divisors is an integer number (941136).
Almost surely, 223001580 is an apocalyptic number.
23001580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 23001580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28234080).
23001580 is an abundant number, since it is smaller than the sum of its proper divisors (33466580).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23001580 is an equidigital number, since it uses as much as digits as its factorization.
23001580 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 516 (or 493 counting only the distinct ones).
The product of its (nonzero) digits is 240, while the sum is 19.
The square root of 23001580 is about 4795.9962468709. The cubic root of 23001580 is about 284.3932098793.
The spelling of 23001580 in words is "twenty-three million, one thousand, five hundred eighty".
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