Search a number
-
+
319349 = 417789
BaseRepresentation
bin1001101111101110101
3121020001202
41031331311
540204344
610502245
72500022
oct1157565
9536052
10319349
111a8a28
12134985
13b2484
1484549
156494e
hex4df75

319349 has 4 divisors (see below), whose sum is σ = 327180. Its totient is φ = 311520.

The previous prime is 319343. The next prime is 319351. The reversal of 319349 is 943913.

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

It can be written as a sum of positive squares in 2 ways, for example, as 87025 + 232324 = 295^2 + 482^2 .

It is a cyclic number.

It is not a de Polignac number, because 319349 - 28 = 319093 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (319343) 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 3 ways as a sum of consecutive naturals, for example, 3854 + ... + 3935.

It is an arithmetic number, because the mean of its divisors is an integer number (81795).

2319349 is an apocalyptic number.

It is an amenable number.

319349 is a deficient number, since it is larger than the sum of its proper divisors (7831).

319349 is an equidigital number, since it uses as much as digits as its factorization.

319349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7830.

The product of its digits is 2916, while the sum is 29.

The square root of 319349 is about 565.1097238590. The cubic root of 319349 is about 68.3526232804.

The spelling of 319349 in words is "three hundred nineteen thousand, three hundred forty-nine".

Divisors: 1 41 7789 319349