Base | Representation |
---|---|
bin | 101110111110… |
… | …000110101101 |
3 | 212011120021020 |
4 | 232332012231 |
5 | 11123004010 |
6 | 1115524353 |
7 | 206441655 |
oct | 56760655 |
9 | 25146236 |
10 | 12313005 |
11 | 6a4aa41 |
12 | 41596b9 |
13 | 2721603 |
14 | 18c7365 |
15 | 1133470 |
hex | bbe1ad |
12313005 has 16 divisors (see below), whose sum is σ = 20036160. Its totient is φ = 6455168.
The previous prime is 12313003. The next prime is 12313043. The reversal of 12313005 is 50031321.
It is a happy number.
12313005 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a cyclic number.
It is not a de Polignac number, because 12313005 - 21 = 12313003 is a prime.
It is a super-2 number, since 2×123130052 = 303220184260050, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (12313003) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6072 + ... + 7841.
It is an arithmetic number, because the mean of its divisors is an integer number (1252260).
Almost surely, 212313005 is an apocalyptic number.
12313005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.
It is an amenable number.
12313005 is a deficient number, since it is larger than the sum of its proper divisors (7723155).
12313005 is a wasteful number, since it uses less digits than its factorization.
12313005 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13980.
The product of its (nonzero) digits is 90, while the sum is 15.
The square root of 12313005 is about 3508.9891706872. The cubic root of 12313005 is about 230.9163505901.
Adding to 12313005 its reverse (50031321), we get a palindrome (62344326).
The spelling of 12313005 in words is "twelve million, three hundred thirteen thousand, five".
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