Base | Representation |
---|---|
bin | 110001001101… |
… | …100111000100 |
3 | 220021102120120 |
4 | 301031213010 |
5 | 11300311204 |
6 | 1140301540 |
7 | 214440450 |
oct | 61154704 |
9 | 26242516 |
10 | 12900804 |
11 | 7311624 |
12 | 43a18b0 |
13 | 2899017 |
14 | 19db660 |
15 | 11ec6d9 |
hex | c4d9c4 |
12900804 has 48 divisors (see below), whose sum is σ = 34742400. Its totient is φ = 3649536.
The previous prime is 12900803. The next prime is 12900809. The reversal of 12900804 is 40800921.
It is not an unprimeable number, because it can be changed into a prime (12900803) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8452 + ... + 9860.
It is an arithmetic number, because the mean of its divisors is an integer number (723800).
Almost surely, 212900804 is an apocalyptic number.
12900804 is a gapful number since it is divisible by the number (14) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 12900804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17371200).
12900804 is an abundant number, since it is smaller than the sum of its proper divisors (21841596).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12900804 is a wasteful number, since it uses less digits than its factorization.
12900804 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1532 (or 1530 counting only the distinct ones).
The product of its (nonzero) digits is 576, while the sum is 24.
The square root of 12900804 is about 3591.7689235250. The cubic root of 12900804 is about 234.5338821721.
The spelling of 12900804 in words is "twelve million, nine hundred thousand, eight hundred four".
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