Base | Representation |
---|---|
bin | 1011111000010010101 |
3 | 201202222101 |
4 | 1133002111 |
5 | 44424034 |
6 | 12202101 |
7 | 3210616 |
oct | 1370225 |
9 | 652871 |
10 | 389269 |
11 | 246511 |
12 | 169331 |
13 | 10824a |
14 | a1c0d |
15 | 7a514 |
hex | 5f095 |
389269 has 2 divisors, whose sum is σ = 389270. Its totient is φ = 389268.
The previous prime is 389231. The next prime is 389273. The reversal of 389269 is 962983.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 237169 + 152100 = 487^2 + 390^2 .
It is a cyclic number.
It is not a de Polignac number, because 389269 - 27 = 389141 is a prime.
It is a super-2 number, since 2×3892692 = 303060708722, which contains 22 as substring.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (389219) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 194634 + 194635.
It is an arithmetic number, because the mean of its divisors is an integer number (194635).
2389269 is an apocalyptic number.
It is an amenable number.
389269 is a deficient number, since it is larger than the sum of its proper divisors (1).
389269 is an equidigital number, since it uses as much as digits as its factorization.
389269 is an evil number, because the sum of its binary digits is even.
The product of its digits is 23328, while the sum is 37.
The square root of 389269 is about 623.9142569296. The cubic root of 389269 is about 73.0157594049.
The spelling of 389269 in words is "three hundred eighty-nine thousand, two hundred sixty-nine".
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