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30319 is a prime number
BaseRepresentation
bin111011001101111
31112120221
413121233
51432234
6352211
7154252
oct73157
945527
1030319
1120863
1215667
1310a53
14b099
158eb4
hex766f

30319 has 2 divisors, whose sum is σ = 30320. Its totient is φ = 30318.

The previous prime is 30313. The next prime is 30323. The reversal of 30319 is 91303.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (91303) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30319 is a prime.

It is a super-2 number, since 2×303192 = 1838483522, which contains 22 as substring.

It is a plaindrome in base 12.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30313) 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, 15159 + 15160.

It is an arithmetic number, because the mean of its divisors is an integer number (15160).

230319 is an apocalyptic number.

30319 is a deficient number, since it is larger than the sum of its proper divisors (1).

30319 is an equidigital number, since it uses as much as digits as its factorization.

30319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81, while the sum is 16.

The square root of 30319 is about 174.1235193763. The cubic root of 30319 is about 31.1820711150.

Subtracting from 30319 its sum of digits (16), we obtain a palindrome (30303).

The spelling of 30319 in words is "thirty thousand, three hundred nineteen".