Base | Representation |
---|---|
bin | 110000111000… |
… | …110001111101 |
3 | 220010002112121 |
4 | 300320301331 |
5 | 11240043420 |
6 | 1134402541 |
7 | 213633634 |
oct | 60706175 |
9 | 26102477 |
10 | 12815485 |
11 | 7263511 |
12 | 4360451 |
13 | 2869237 |
14 | 19b851b |
15 | 11d22aa |
hex | c38c7d |
12815485 has 8 divisors (see below), whose sum is σ = 16047360. Its totient is φ = 9806544.
The previous prime is 12815471. The next prime is 12815489. The reversal of 12815485 is 58451821.
12815485 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 12815485 - 215 = 12782717 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 12815485.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12815489) by changing a digit.
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 7 ways as a sum of consecutive naturals, for example, 55605 + ... + 55834.
It is an arithmetic number, because the mean of its divisors is an integer number (2005920).
Almost surely, 212815485 is an apocalyptic number.
It is an amenable number.
12815485 is a deficient number, since it is larger than the sum of its proper divisors (3231875).
12815485 is a wasteful number, since it uses less digits than its factorization.
12815485 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 111467.
The product of its digits is 12800, while the sum is 34.
The square root of 12815485 is about 3579.8722044229. The cubic root of 12815485 is about 234.0157110741.
The spelling of 12815485 in words is "twelve million, eight hundred fifteen thousand, four hundred eighty-five".
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