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163349 = 379431
BaseRepresentation
bin100111111000010101
322022001222
4213320111
520211344
63300125
71250144
oct477025
9268058
10163349
111017aa
127a645
1359474
144375b
15335ee
hex27e15

163349 has 4 divisors (see below), whose sum is σ = 164160. Its totient is φ = 162540.

The previous prime is 163337. The next prime is 163351. The reversal of 163349 is 943361.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 943361 = 3130431.

It is a cyclic number.

It is not a de Polignac number, because 163349 - 216 = 97813 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (163309) 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, 164 + ... + 594.

It is an arithmetic number, because the mean of its divisors is an integer number (41040).

2163349 is an apocalyptic number.

It is an amenable number.

163349 is a deficient number, since it is larger than the sum of its proper divisors (811).

163349 is an equidigital number, since it uses as much as digits as its factorization.

163349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810.

The product of its digits is 1944, while the sum is 26.

The square root of 163349 is about 404.1645704413. The cubic root of 163349 is about 54.6645142586.

It can be divided in two parts, 163 and 349, that added together give a 9-th power (512 = 29).

The spelling of 163349 in words is "one hundred sixty-three thousand, three hundred forty-nine".

Divisors: 1 379 431 163349