Search a number
-
+
338971 = 419809
BaseRepresentation
bin1010010110000011011
3122012222111
41102300123
541321341
611133151
72611153
oct1226033
9565874
10338971
11211746
121441b7
13bb399
148b763
156a681
hex52c1b

338971 has 4 divisors (see below), whose sum is σ = 340200. Its totient is φ = 337744.

The previous prime is 338959. The next prime is 338993. The reversal of 338971 is 179833.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-338971 is a prime.

It is a super-2 number, since 2×3389712 = 229802677682, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (338171) 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, 15 + ... + 823.

It is an arithmetic number, because the mean of its divisors is an integer number (85050).

2338971 is an apocalyptic number.

338971 is a deficient number, since it is larger than the sum of its proper divisors (1229).

338971 is an equidigital number, since it uses as much as digits as its factorization.

338971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1228.

The product of its digits is 4536, while the sum is 31.

The square root of 338971 is about 582.2121606425. The cubic root of 338971 is about 69.7248381554.

The spelling of 338971 in words is "three hundred thirty-eight thousand, nine hundred seventy-one".

Divisors: 1 419 809 338971