Search a number
103231 is a prime number
BaseRepresentation
bin11001001100111111
312020121101
4121030333
511300411
62113531
7606652
oct311477
9166541
10103231
1170617
124b8a7
1337cab
1429899
15208c1
hex1933f

103231 has 2 divisors, whose sum is σ = 103232. Its totient is φ = 103230.

The previous prime is 103217. The next prime is 103237. The reversal of 103231 is 132301.

Adding to 103231 its reverse (132301), we get a palindrome (235532).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 103231 - 211 = 101183 is a prime.

It is a super-2 number, since 2×1032312 = 21313278722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51615 + 51616.

It is an arithmetic number, because the mean of its divisors is an integer number (51616).

2103231 is an apocalyptic number.

103231 is the 186-th hex number.

103231 is a deficient number, since it is larger than the sum of its proper divisors (1).

103231 is an equidigital number, since it uses as much as digits as its factorization.

103231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 103231 is about 321.2958138538. The cubic root of 103231 is about 46.9104981477.

The spelling of 103231 in words is "one hundred three thousand, two hundred thirty-one".