Base | Representation |
---|---|
bin | 110000110101… |
… | …110100110100 |
3 | 220002110221021 |
4 | 300311310310 |
5 | 11234202010 |
6 | 1134230524 |
7 | 213553432 |
oct | 60656464 |
9 | 26073837 |
10 | 12803380 |
11 | 7255407 |
12 | 4355444 |
13 | 2863885 |
14 | 19b3d52 |
15 | 11cd8da |
hex | c35d34 |
12803380 has 24 divisors (see below), whose sum is σ = 28469448. Its totient is φ = 4819968.
The previous prime is 12803347. The next prime is 12803393. The reversal of 12803380 is 8330821.
12803380 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It can be written as a sum of positive squares in 4 ways, for example, as 4485924 + 8317456 = 2118^2 + 2884^2 .
It is a congruent number.
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, 18489 + ... + 19168.
It is an arithmetic number, because the mean of its divisors is an integer number (1186227).
Almost surely, 212803380 is an apocalyptic number.
12803380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
12803380 is an abundant number, since it is smaller than the sum of its proper divisors (15666068).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
12803380 is a wasteful number, since it uses less digits than its factorization.
12803380 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 37683 (or 37681 counting only the distinct ones).
The product of its (nonzero) digits is 1152, while the sum is 25.
The square root of 12803380 is about 3578.1811021803. The cubic root of 12803380 is about 233.9420072032.
It can be divided in two parts, 1280 and 3380, that multiplied together give a square (4326400 = 20802).
The spelling of 12803380 in words is "twelve million, eight hundred three thousand, three hundred eighty".
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