Base | Representation |
---|---|
bin | 101111010010… |
… | …001101111011 |
3 | 212022202021102 |
4 | 233102031323 |
5 | 11133123022 |
6 | 1121402015 |
7 | 210234104 |
oct | 57221573 |
9 | 25282242 |
10 | 12395387 |
11 | 6aa6924 |
12 | 419930b |
13 | 274cc64 |
14 | 19093ab |
15 | 114ca92 |
hex | bd237b |
12395387 has 2 divisors, whose sum is σ = 12395388. Its totient is φ = 12395386.
The previous prime is 12395347. The next prime is 12395389. The reversal of 12395387 is 78359321.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 12395387 - 26 = 12395323 is a prime.
Together with 12395389, it forms a pair of twin primes.
It is a Chen prime.
It is a self number, because there is not a number n which added to its sum of digits gives 12395387.
It is not a weakly prime, because it can be changed into another prime (12395389) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6197693 + 6197694.
It is an arithmetic number, because the mean of its divisors is an integer number (6197694).
Almost surely, 212395387 is an apocalyptic number.
12395387 is a deficient number, since it is larger than the sum of its proper divisors (1).
12395387 is an equidigital number, since it uses as much as digits as its factorization.
12395387 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 45360, while the sum is 38.
The square root of 12395387 is about 3520.7083094173. The cubic root of 12395387 is about 231.4301997440.
The spelling of 12395387 in words is "twelve million, three hundred ninety-five thousand, three hundred eighty-seven".
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