Base | Representation |
---|---|
bin | 110000110101… |
… | …110100111001 |
3 | 220002110221110 |
4 | 300311310321 |
5 | 11234202020 |
6 | 1134230533 |
7 | 213553440 |
oct | 60656471 |
9 | 26073843 |
10 | 12803385 |
11 | 7255411 |
12 | 4355449 |
13 | 286388a |
14 | 19b3d57 |
15 | 11cd8e0 |
hex | c35d39 |
12803385 has 16 divisors (see below), whose sum is σ = 23412096. Its totient is φ = 5852928.
The previous prime is 12803347. The next prime is 12803393. The reversal of 12803385 is 58330821.
It is a happy number.
12803385 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is not a de Polignac number, because 12803385 - 211 = 12801337 is a prime.
It is a Curzon number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60864 + ... + 61073.
It is an arithmetic number, because the mean of its divisors is an integer number (1463256).
Almost surely, 212803385 is an apocalyptic number.
12803385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
12803385 is a deficient number, since it is larger than the sum of its proper divisors (10608711).
12803385 is a wasteful number, since it uses less digits than its factorization.
12803385 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 121952.
The product of its (nonzero) digits is 5760, while the sum is 30.
The square root of 12803385 is about 3578.1818008592. The cubic root of 12803385 is about 233.9420376563.
The spelling of 12803385 in words is "twelve million, eight hundred three thousand, three hundred eighty-five".
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