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389269 is a prime number
BaseRepresentation
bin1011111000010010101
3201202222101
41133002111
544424034
612202101
73210616
oct1370225
9652871
10389269
11246511
12169331
1310824a
14a1c0d
157a514
hex5f095

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".