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349243 = 379439
BaseRepresentation
bin1010101010000111011
3122202001221
41111100323
542133433
611252511
72653126
oct1252073
9582057
10349243
11219434
1214a137
13c2c6b
14913bd
156d72d
hex5543b

349243 has 4 divisors (see below), whose sum is σ = 358720. Its totient is φ = 339768.

The previous prime is 349241. The next prime is 349291. The reversal of 349243 is 342943.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342943 = 2411423.

It is a cyclic number.

It is not a de Polignac number, because 349243 - 21 = 349241 is a prime.

It is a Duffinian number.

349243 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (349241) 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, 4683 + ... + 4756.

It is an arithmetic number, because the mean of its divisors is an integer number (89680).

2349243 is an apocalyptic number.

349243 is a deficient number, since it is larger than the sum of its proper divisors (9477).

349243 is an equidigital number, since it uses as much as digits as its factorization.

349243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9476.

The product of its digits is 2592, while the sum is 25.

The square root of 349243 is about 590.9678502254. The cubic root of 349243 is about 70.4221429787.

The spelling of 349243 in words is "three hundred forty-nine thousand, two hundred forty-three".

Divisors: 1 37 9439 349243