Base | Representation |
---|---|
bin | 101101100011… |
… | …0000101000000 |
3 | 1122221020012110 |
4 | 1123012011000 |
5 | 22103130000 |
6 | 2211455320 |
7 | 406655664 |
oct | 133060500 |
9 | 48836173 |
10 | 23880000 |
11 | 12530441 |
12 | 7bb7540 |
13 | 4c414a1 |
14 | 32588a4 |
15 | 216a850 |
hex | 16c6140 |
23880000 has 140 divisors (see below), whose sum is σ = 79349600. Its totient is φ = 6336000.
The previous prime is 23879993. The next prime is 23880011. The reversal of 23880000 is 8832.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 119901 + ... + 120099.
Almost surely, 223880000 is an apocalyptic number.
23880000 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 23880000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39674800).
23880000 is an abundant number, since it is smaller than the sum of its proper divisors (55469600).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
23880000 is an equidigital number, since it uses as much as digits as its factorization.
23880000 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 234 (or 209 counting only the distinct ones).
The product of its (nonzero) digits is 384, while the sum is 21.
The square root of 23880000 is about 4886.7166891482. The cubic root of 23880000 is about 287.9683607218.
Adding to 23880000 its reverse (8832), we get a palindrome (23888832).
The spelling of 23880000 in words is "twenty-three million, eight hundred eighty thousand".
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