Base | Representation |
---|---|
bin | 10110101100110… |
… | …110111111010001 |
3 | 222112122121101202 |
4 | 112230312333101 |
5 | 1234444431241 |
6 | 101443040545 |
7 | 12303146054 |
oct | 2654667721 |
9 | 875577352 |
10 | 380858321 |
11 | 185a91548 |
12 | a7670155 |
13 | 60b9ba6c |
14 | 38820a9b |
15 | 23681d9b |
hex | 16b36fd1 |
380858321 has 2 divisors, whose sum is σ = 380858322. Its totient is φ = 380858320.
The previous prime is 380858263. The next prime is 380858329. The reversal of 380858321 is 123858083.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 357625921 + 23232400 = 18911^2 + 4820^2 .
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-380858321 is a prime.
It is not a weakly prime, because it can be changed into another prime (380858329) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 190429160 + 190429161.
It is an arithmetic number, because the mean of its divisors is an integer number (190429161).
Almost surely, 2380858321 is an apocalyptic number.
It is an amenable number.
380858321 is a deficient number, since it is larger than the sum of its proper divisors (1).
380858321 is an equidigital number, since it uses as much as digits as its factorization.
380858321 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 46080, while the sum is 38.
The square root of 380858321 is about 19515.5917409645. The cubic root of 380858321 is about 724.8605810390.
The spelling of 380858321 in words is "three hundred eighty million, eight hundred fifty-eight thousand, three hundred twenty-one".
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