Base | Representation |
---|---|
bin | 101111011011… |
… | …011001011001 |
3 | 212101122211221 |
4 | 233123121121 |
5 | 11140323420 |
6 | 1122252041 |
7 | 210451525 |
oct | 57333131 |
9 | 25348757 |
10 | 12432985 |
11 | 70220a4 |
12 | 41b7021 |
13 | 27640c6 |
14 | 1918d85 |
15 | 1158caa |
hex | bdb659 |
12432985 has 8 divisors (see below), whose sum is σ = 15099840. Its totient is φ = 9826224.
The previous prime is 12432971. The next prime is 12432997. The reversal of 12432985 is 58923421.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 12432985 - 221 = 10335833 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 12432985.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14565 + ... + 15394.
It is an arithmetic number, because the mean of its divisors is an integer number (1887480).
Almost surely, 212432985 is an apocalyptic number.
It is an amenable number.
12432985 is a deficient number, since it is larger than the sum of its proper divisors (2666855).
12432985 is an equidigital number, since it uses as much as digits as its factorization.
12432985 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 30047.
The product of its digits is 17280, while the sum is 34.
The square root of 12432985 is about 3526.0438170845. The cubic root of 12432985 is about 231.6639568603.
The spelling of 12432985 in words is "twelve million, four hundred thirty-two thousand, nine hundred eighty-five".
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