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389339 = 1392801
BaseRepresentation
bin1011111000011011011
3201210001222
41133003123
544424324
612202255
73211046
oct1370333
9653058
10389339
11246575
1216938b
131082a2
14a1c5d
157a55e
hex5f0db

389339 has 4 divisors (see below), whose sum is σ = 392280. Its totient is φ = 386400.

The previous prime is 389303. The next prime is 389357. The reversal of 389339 is 933983.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 933983 = 1949157.

It is a cyclic number.

It is not a de Polignac number, because 389339 - 28 = 389083 is a prime.

It is a d-powerful number, because it can be written as 37 + 85 + 311 + 9 + 311 + 92 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 389299 and 389308.

It is not an unprimeable number, because it can be changed into a prime (389369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1262 + ... + 1539.

It is an arithmetic number, because the mean of its divisors is an integer number (98070).

2389339 is an apocalyptic number.

389339 is a deficient number, since it is larger than the sum of its proper divisors (2941).

389339 is a wasteful number, since it uses less digits than its factorization.

389339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2940.

The product of its digits is 17496, while the sum is 35.

The square root of 389339 is about 623.9703518598. The cubic root of 389339 is about 73.0201358102.

Subtracting 389339 from its reverse (933983), we obtain a square (544644 = 7382).

The spelling of 389339 in words is "three hundred eighty-nine thousand, three hundred thirty-nine".

Divisors: 1 139 2801 389339