Base | Representation |
---|---|
bin | 101111001111… |
… | …110111000010 |
3 | 212022021000202 |
4 | 233033313002 |
5 | 11132320410 |
6 | 1121245202 |
7 | 210164000 |
oct | 57176702 |
9 | 25267022 |
10 | 12385730 |
11 | 6a9a645 |
12 | 4193802 |
13 | 2748746 |
14 | 1905a70 |
15 | 1149ca5 |
hex | bcfdc2 |
12385730 has 64 divisors (see below), whose sum is σ = 27302400. Its totient is φ = 4036032.
The previous prime is 12385727. The next prime is 12385757. The reversal of 12385730 is 3758321.
It is a junction number, because it is equal to n+sod(n) for n = 12385693 and 12385702.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78812 + ... + 78968.
It is an arithmetic number, because the mean of its divisors is an integer number (426600).
Almost surely, 212385730 is an apocalyptic number.
12385730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12385730 is an abundant number, since it is smaller than the sum of its proper divisors (14916670).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12385730 is a wasteful number, since it uses less digits than its factorization.
12385730 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 208 (or 194 counting only the distinct ones).
The product of its (nonzero) digits is 5040, while the sum is 29.
The square root of 12385730 is about 3519.3365852103. The cubic root of 12385730 is about 231.3700832376.
The spelling of 12385730 in words is "twelve million, three hundred eighty-five thousand, seven hundred thirty".
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