Base | Representation |
---|---|
bin | 101111100001… |
… | …101111101001 |
3 | 212102222111220 |
4 | 233201233221 |
5 | 11142141420 |
6 | 1123012253 |
7 | 210620400 |
oct | 57415751 |
9 | 25388456 |
10 | 12458985 |
11 | 703a690 |
12 | 420a089 |
13 | 2772ba6 |
14 | 1924637 |
15 | 1161840 |
hex | be1be9 |
12458985 has 96 divisors (see below), whose sum is σ = 26790912. Its totient is φ = 4878720.
The previous prime is 12458969. The next prime is 12459001. The reversal of 12458985 is 58985421.
It is a happy number.
It is an interprime number because it is at equal distance from previous prime (12458969) and next prime (12459001).
It is not a de Polignac number, because 12458985 - 24 = 12458969 is a prime.
It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 185922 + ... + 185988.
It is an arithmetic number, because the mean of its divisors is an integer number (279072).
Almost surely, 212458985 is an apocalyptic number.
12458985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
12458985 is an abundant number, since it is smaller than the sum of its proper divisors (14331927).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12458985 is a wasteful number, since it uses less digits than its factorization.
12458985 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 123 (or 116 counting only the distinct ones).
The product of its digits is 115200, while the sum is 42.
The square root of 12458985 is about 3529.7287431189. The cubic root of 12458985 is about 231.8253305265.
The spelling of 12458985 in words is "twelve million, four hundred fifty-eight thousand, nine hundred eighty-five".
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