Base | Representation |
---|---|
bin | 101110010110… |
… | …100000110111 |
3 | 211212022211002 |
4 | 232112200313 |
5 | 11102311324 |
6 | 1112233515 |
7 | 205165121 |
oct | 56264067 |
9 | 24768732 |
10 | 12150839 |
11 | 694a118 |
12 | 409b89b |
13 | 269585c |
14 | 1884211 |
15 | 11003ae |
hex | b96837 |
12150839 has 2 divisors, whose sum is σ = 12150840. Its totient is φ = 12150838.
The previous prime is 12150829. The next prime is 12150841. The reversal of 12150839 is 93805121.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 12150839 - 28 = 12150583 is a prime.
Together with 12150841, it forms a pair of twin primes.
It is a Chen prime.
It is equal to p797312 and since 12150839 and 797312 have the same sum of digits, it is a Honaker prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (12150829) 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 as a sum of consecutive naturals, namely, 6075419 + 6075420.
It is an arithmetic number, because the mean of its divisors is an integer number (6075420).
Almost surely, 212150839 is an apocalyptic number.
12150839 is a deficient number, since it is larger than the sum of its proper divisors (1).
12150839 is an equidigital number, since it uses as much as digits as its factorization.
12150839 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 2160, while the sum is 29.
The square root of 12150839 is about 3485.8053588805. The cubic root of 12150839 is about 229.8981212309.
The spelling of 12150839 in words is "twelve million, one hundred fifty thousand, eight hundred thirty-nine".
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