Base | Representation |
---|---|
bin | 101110101110… |
… | …101110100011 |
3 | 212001100212102 |
4 | 232232232203 |
5 | 11114000034 |
6 | 1114321015 |
7 | 206060225 |
oct | 56565643 |
9 | 25040772 |
10 | 12250019 |
11 | 6a07691 |
12 | 412916b |
13 | 26cba42 |
14 | 18ac415 |
15 | 111e97e |
hex | baeba3 |
12250019 has 2 divisors, whose sum is σ = 12250020. Its totient is φ = 12250018.
The previous prime is 12250009. The next prime is 12250061. The reversal of 12250019 is 91005221.
12250019 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 12250019 - 28 = 12249763 is a prime.
It is a super-2 number, since 2×122500192 = 300125931000722, which contains 22 as substring.
It is equal to p803360 and since 12250019 and 803360 have the same sum of digits, it is a Honaker prime.
It is not a weakly prime, because it can be changed into another prime (12250009) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6125009 + 6125010.
It is an arithmetic number, because the mean of its divisors is an integer number (6125010).
Almost surely, 212250019 is an apocalyptic number.
12250019 is a deficient number, since it is larger than the sum of its proper divisors (1).
12250019 is an equidigital number, since it uses as much as digits as its factorization.
12250019 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 180, while the sum is 20.
The square root of 12250019 is about 3500.0027142847. The cubic root of 12250019 is about 230.5219337842.
The spelling of 12250019 in words is "twelve million, two hundred fifty thousand, nineteen".
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