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BaseRepresentation
bin1010101010000000101
3122201222221
41111100011
542133224
611252341
72653021
oct1252005
9581887
10349189
11219395
1214a0b1
13c2c29
1491381
156d6e4
hex55405

349189 has 4 divisors (see below), whose sum is σ = 361260. Its totient is φ = 337120.

The previous prime is 349187. The next prime is 349199. The reversal of 349189 is 981943.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 981943 = 3726539.

It can be written as a sum of positive squares in 2 ways, for example, as 202500 + 146689 = 450^2 + 383^2 .

It is a cyclic number.

It is not a de Polignac number, because 349189 - 21 = 349187 is a prime.

It is a Duffinian number.

349189 is a lucky number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5992 + ... + 6049.

It is an arithmetic number, because the mean of its divisors is an integer number (90315).

2349189 is an apocalyptic number.

It is an amenable number.

349189 is a deficient number, since it is larger than the sum of its proper divisors (12071).

349189 is a wasteful number, since it uses less digits than its factorization.

349189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12070.

The product of its digits is 7776, while the sum is 34.

The square root of 349189 is about 590.9221606946. The cubic root of 349189 is about 70.4185132311.

The spelling of 349189 in words is "three hundred forty-nine thousand, one hundred eighty-nine".

Divisors: 1 29 12041 349189