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389259 = 33131109
BaseRepresentation
bin1011111000010001011
3201202222000
41133002023
544424014
612202043
73210603
oct1370213
9652860
10389259
11246502
12169323
13108240
14a1c03
157a509
hex5f08b

389259 has 16 divisors (see below), whose sum is σ = 621600. Its totient is φ = 239328.

The previous prime is 389231. The next prime is 389269. The reversal of 389259 is 952983.

389259 = 1672 + 1682 + ... + 1792.

It is not a de Polignac number, because 389259 - 25 = 389227 is a prime.

389259 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 389259.

It is not an unprimeable number, because it can be changed into a prime (389219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204 + ... + 905.

It is an arithmetic number, because the mean of its divisors is an integer number (38850).

2389259 is an apocalyptic number.

389259 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

389259 is a deficient number, since it is larger than the sum of its proper divisors (232341).

389259 is a wasteful number, since it uses less digits than its factorization.

389259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1131 (or 1125 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 389259 is about 623.9062429564. The cubic root of 389259 is about 73.0151341613.

The spelling of 389259 in words is "three hundred eighty-nine thousand, two hundred fifty-nine".

Divisors: 1 3 9 13 27 39 117 351 1109 3327 9981 14417 29943 43251 129753 389259