Base | Representation |
---|---|
bin | 1011110010110111001 |
3 | 201122011102 |
4 | 1132112321 |
5 | 44331424 |
6 | 12141145 |
7 | 3166535 |
oct | 1362671 |
9 | 648142 |
10 | 386489 |
11 | 244414 |
12 | 1677b5 |
13 | 106bbc |
14 | a0bc5 |
15 | 797ae |
hex | 5e5b9 |
386489 has 2 divisors, whose sum is σ = 386490. Its totient is φ = 386488.
The previous prime is 386471. The next prime is 386501. The reversal of 386489 is 984683.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 284089 + 102400 = 533^2 + 320^2 .
It is a cyclic number.
It is not a de Polignac number, because 386489 - 28 = 386233 is a prime.
It is a Chen prime.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 386489.
It is not a weakly prime, because it can be changed into another prime (386429) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 193244 + 193245.
It is an arithmetic number, because the mean of its divisors is an integer number (193245).
2386489 is an apocalyptic number.
It is an amenable number.
386489 is a deficient number, since it is larger than the sum of its proper divisors (1).
386489 is an equidigital number, since it uses as much as digits as its factorization.
386489 is an evil number, because the sum of its binary digits is even.
The product of its digits is 41472, while the sum is 38.
The square root of 386489 is about 621.6823947966. The cubic root of 386489 is about 72.8415277496.
The spelling of 386489 in words is "three hundred eighty-six thousand, four hundred eighty-nine".
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