Base | Representation |
---|---|
bin | 10110101101001… |
… | …101001111110101 |
3 | 222112211020110111 |
4 | 112231031033311 |
5 | 1240010340433 |
6 | 101445023021 |
7 | 12304005631 |
oct | 2655151765 |
9 | 875736414 |
10 | 380949493 |
11 | 186043aa1 |
12 | a76b4a71 |
13 | 60c01402 |
14 | 38845dc1 |
15 | 2369ddcd |
hex | 16b4d3f5 |
380949493 has 2 divisors, whose sum is σ = 380949494. Its totient is φ = 380949492.
The previous prime is 380949431. The next prime is 380949511. The reversal of 380949493 is 394949083.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 215003569 + 165945924 = 14663^2 + 12882^2 .
It is a cyclic number.
It is not a de Polignac number, because 380949493 - 217 = 380818421 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (380949193) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190474746 + 190474747.
It is an arithmetic number, because the mean of its divisors is an integer number (190474747).
Almost surely, 2380949493 is an apocalyptic number.
It is an amenable number.
380949493 is a deficient number, since it is larger than the sum of its proper divisors (1).
380949493 is an equidigital number, since it uses as much as digits as its factorization.
380949493 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 839808, while the sum is 49.
The square root of 380949493 is about 19517.9274770658. The cubic root of 380949493 is about 724.9184168207.
The spelling of 380949493 in words is "three hundred eighty million, nine hundred forty-nine thousand, four hundred ninety-three".
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