Base | Representation |
---|---|
bin | 101110110111… |
… | …011111011000 |
3 | 212010012002210 |
4 | 232313133120 |
5 | 11121122122 |
6 | 1115155120 |
7 | 206266662 |
oct | 56673730 |
9 | 25105083 |
10 | 12285912 |
11 | 6a31651 |
12 | 4145aa0 |
13 | 2712192 |
14 | 18bb532 |
15 | 112a40c |
hex | bb77d8 |
12285912 has 32 divisors (see below), whose sum is σ = 30801600. Its totient is φ = 4083744.
The previous prime is 12285907. The next prime is 12285919. The reversal of 12285912 is 21958221.
It is a self number, because there is not a number n which added to its sum of digits gives 12285912.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12285919) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14443 + ... + 15269.
It is an arithmetic number, because the mean of its divisors is an integer number (962550).
Almost surely, 212285912 is an apocalyptic number.
12285912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.
It is an amenable number.
12285912 is an abundant number, since it is smaller than the sum of its proper divisors (18515688).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12285912 is a wasteful number, since it uses less digits than its factorization.
12285912 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1455 (or 1451 counting only the distinct ones).
The product of its digits is 2880, while the sum is 30.
The square root of 12285912 is about 3505.1265312396. The cubic root of 12285912 is about 230.7468601221.
It can be divided in two parts, 1228 and 5912, that added together give a triangular number (7140 = T119).
The spelling of 12285912 in words is "twelve million, two hundred eighty-five thousand, nine hundred twelve".
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