Base | Representation |
---|---|
bin | 110000100000… |
… | …010110100110 |
3 | 212221000021212 |
4 | 300200112212 |
5 | 11223343210 |
6 | 1132311422 |
7 | 213036140 |
oct | 60402646 |
9 | 25830255 |
10 | 12715430 |
11 | 71a5322 |
12 | 4312572 |
13 | 2832830 |
14 | 198dc90 |
15 | 11b2805 |
hex | c205a6 |
12715430 has 64 divisors (see below), whose sum is σ = 28667520. Its totient is φ = 3953664.
The previous prime is 12715403. The next prime is 12715433. The reversal of 12715430 is 3451721.
It is a junction number, because it is equal to n+sod(n) for n = 12715396 and 12715405.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12715433) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80912 + ... + 81068.
It is an arithmetic number, because the mean of its divisors is an integer number (447930).
Almost surely, 212715430 is an apocalyptic number.
12715430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
12715430 is an abundant number, since it is smaller than the sum of its proper divisors (15952090).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12715430 is a wasteful number, since it uses less digits than its factorization.
12715430 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 273.
The product of its (nonzero) digits is 840, while the sum is 23.
The square root of 12715430 is about 3565.8701602835. The cubic root of 12715430 is about 233.4051049055.
The spelling of 12715430 in words is "twelve million, seven hundred fifteen thousand, four hundred thirty".
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