Base | Representation |
---|---|
bin | 10110101101010… |
… | …001110100010101 |
3 | 222112212012010211 |
4 | 112231101310111 |
5 | 1240011440323 |
6 | 101445245421 |
7 | 12304114333 |
oct | 2655216425 |
9 | 875765124 |
10 | 380968213 |
11 | 18605706a |
12 | a7703871 |
13 | 60c09aa2 |
14 | 3884cb53 |
15 | 236a470d |
hex | 16b51d15 |
380968213 has 2 divisors, whose sum is σ = 380968214. Its totient is φ = 380968212.
The previous prime is 380968201. The next prime is 380968219. The reversal of 380968213 is 312869083.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 230979204 + 149989009 = 15198^2 + 12247^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-380968213 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (380968219) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190484106 + 190484107.
It is an arithmetic number, because the mean of its divisors is an integer number (190484107).
Almost surely, 2380968213 is an apocalyptic number.
It is an amenable number.
380968213 is a deficient number, since it is larger than the sum of its proper divisors (1).
380968213 is an equidigital number, since it uses as much as digits as its factorization.
380968213 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 62208, while the sum is 40.
The square root of 380968213 is about 19518.4070302881. The cubic root of 380968213 is about 724.9302908799.
The spelling of 380968213 in words is "three hundred eighty million, nine hundred sixty-eight thousand, two hundred thirteen".
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