Base | Representation |
---|---|
bin | 101111101100… |
… | …001010110000 |
3 | 212112011002012 |
4 | 233230022300 |
5 | 11200023210 |
6 | 1123542052 |
7 | 211156022 |
oct | 57541260 |
9 | 25464065 |
10 | 12501680 |
11 | 7069774 |
12 | 422a928 |
13 | 2789459 |
14 | 1936012 |
15 | 116e305 |
hex | bec2b0 |
12501680 has 60 divisors (see below), whose sum is σ = 30432576. Its totient is φ = 4771200.
The previous prime is 12501659. The next prime is 12501683. The reversal of 12501680 is 8610521.
12501680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is not an unprimeable number, because it can be changed into a prime (12501683) 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, 176045 + ... + 176115.
Almost surely, 212501680 is an apocalyptic number.
12501680 is a gapful number since it is divisible by the number (10) 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 12501680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15216288).
12501680 is an abundant number, since it is smaller than the sum of its proper divisors (17930896).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12501680 is an equidigital number, since it uses as much as digits as its factorization.
12501680 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 186 (or 109 counting only the distinct ones).
The product of its (nonzero) digits is 480, while the sum is 23.
The square root of 12501680 is about 3535.7714858288. The cubic root of 12501680 is about 232.0898383739.
The spelling of 12501680 in words is "twelve million, five hundred one thousand, six hundred eighty".
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