Base | Representation |
---|---|
bin | 10110101100011… |
… | …001110000001001 |
3 | 222112102112010111 |
4 | 112230121300021 |
5 | 1234432113234 |
6 | 101440314321 |
7 | 12302136661 |
oct | 2654316011 |
9 | 875375114 |
10 | 380738569 |
11 | 185a0a582 |
12 | a76129a1 |
13 | 60b593c3 |
14 | 387cd1a1 |
15 | 2365b664 |
hex | 16b19c09 |
380738569 has 2 divisors, whose sum is σ = 380738570. Its totient is φ = 380738568.
The previous prime is 380738537. The next prime is 380738599. The reversal of 380738569 is 965837083.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 233722944 + 147015625 = 15288^2 + 12125^2 .
It is a cyclic number.
It is not a de Polignac number, because 380738569 - 25 = 380738537 is a prime.
It is a super-2 number, since 2×3807385692 = 289923715848335522, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (380738599) 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, 190369284 + 190369285.
It is an arithmetic number, because the mean of its divisors is an integer number (190369285).
Almost surely, 2380738569 is an apocalyptic number.
It is an amenable number.
380738569 is a deficient number, since it is larger than the sum of its proper divisors (1).
380738569 is an equidigital number, since it uses as much as digits as its factorization.
380738569 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 1088640, while the sum is 49.
The square root of 380738569 is about 19512.5233888393. The cubic root of 380738569 is about 724.7846012508.
The spelling of 380738569 in words is "three hundred eighty million, seven hundred thirty-eight thousand, five hundred sixty-nine".
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