Base | Representation |
---|---|
bin | 10110101010011… |
… | …011110100111011 |
3 | 222111110022121011 |
4 | 112222123310323 |
5 | 1234314112104 |
6 | 101421254351 |
7 | 12264561136 |
oct | 2652336473 |
9 | 874408534 |
10 | 380222779 |
11 | 185698002 |
12 | a74043b7 |
13 | 60a086c1 |
14 | 386d721d |
15 | 235a8904 |
hex | 16a9bd3b |
380222779 has 2 divisors, whose sum is σ = 380222780. Its totient is φ = 380222778.
The previous prime is 380222753. The next prime is 380222783. The reversal of 380222779 is 977222083.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 380222779 - 215 = 380190011 is a prime.
It is not a weakly prime, because it can be changed into another prime (380225779) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190111389 + 190111390.
It is an arithmetic number, because the mean of its divisors is an integer number (190111390).
Almost surely, 2380222779 is an apocalyptic number.
380222779 is a deficient number, since it is larger than the sum of its proper divisors (1).
380222779 is an equidigital number, since it uses as much as digits as its factorization.
380222779 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 84672, while the sum is 40.
The square root of 380222779 is about 19499.3020131491. The cubic root of 380222779 is about 724.4571625825.
The spelling of 380222779 in words is "three hundred eighty million, two hundred twenty-two thousand, seven hundred seventy-nine".
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