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389703 = 3129901
BaseRepresentation
bin1011111001001000111
3201210120110
41133021013
544432303
612204103
73212106
oct1371107
9653513
10389703
11246876
12169633
131084c2
14a203d
157a703
hex5f247

389703 has 4 divisors (see below), whose sum is σ = 519608. Its totient is φ = 259800.

The previous prime is 389699. The next prime is 389713. The reversal of 389703 is 307983.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 389703 - 22 = 389699 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (389713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64948 + ... + 64953.

It is an arithmetic number, because the mean of its divisors is an integer number (129902).

2389703 is an apocalyptic number.

389703 is a deficient number, since it is larger than the sum of its proper divisors (129905).

389703 is a wasteful number, since it uses less digits than its factorization.

389703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129904.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 389703 is about 624.2619642426. The cubic root of 389703 is about 73.0428846663.

The spelling of 389703 in words is "three hundred eighty-nine thousand, seven hundred three".

Divisors: 1 3 129901 389703