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319390 = 2519412
BaseRepresentation
bin1001101111110011110
3121020010021
41031332132
540210030
610502354
72500111
oct1157636
9536107
10319390
111a8a65
121349ba
13b24b6
1484578
156497a
hex4df9e

319390 has 24 divisors (see below), whose sum is σ = 620280. Its totient is φ = 118080.

The previous prime is 319387. The next prime is 319391. The reversal of 319390 is 93913.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (319391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7770 + ... + 7810.

It is an arithmetic number, because the mean of its divisors is an integer number (25845).

2319390 is an apocalyptic number.

319390 is a deficient number, since it is larger than the sum of its proper divisors (300890).

319390 is a wasteful number, since it uses less digits than its factorization.

319390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108 (or 67 counting only the distinct ones).

The product of its (nonzero) digits is 729, while the sum is 25.

The square root of 319390 is about 565.1459988357. The cubic root of 319390 is about 68.3555483327.

The spelling of 319390 in words is "three hundred nineteen thousand, three hundred ninety".

Divisors: 1 2 5 10 19 38 41 82 95 190 205 410 779 1558 1681 3362 3895 7790 8405 16810 31939 63878 159695 319390