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338231 is a prime number
BaseRepresentation
bin1010010100100110111
3122011222002
41102210313
541310411
611125515
72606045
oct1224467
9564862
10338231
11211133
1214389b
13bac4a
148b395
156a33b
hex52937

338231 has 2 divisors, whose sum is σ = 338232. Its totient is φ = 338230.

The previous prime is 338213. The next prime is 338237. The reversal of 338231 is 132833.

Together with previous prime (338213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (132833) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 338231 - 26 = 338167 is a prime.

It is a super-2 number, since 2×3382312 = 228800418722, which contains 22 as substring.

It is a Sophie Germain prime.

It is equal to p29054 and since 338231 and 29054 have the same sum of digits, it is a Honaker prime.

It is a plaindrome in base 8.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (338237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169115 + 169116.

It is an arithmetic number, because the mean of its divisors is an integer number (169116).

2338231 is an apocalyptic number.

338231 is a deficient number, since it is larger than the sum of its proper divisors (1).

338231 is an equidigital number, since it uses as much as digits as its factorization.

338231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 20.

The square root of 338231 is about 581.5763062574. The cubic root of 338231 is about 69.6740629445.

The spelling of 338231 in words is "three hundred thirty-eight thousand, two hundred thirty-one".