Search a number
-
+
79393 is a prime number
BaseRepresentation
bin10011011000100001
311000220111
4103120201
510020033
61411321
7450316
oct233041
9130814
1079393
1154716
1239b41
132a1a2
1420d0d
15187cd
hex13621

79393 has 2 divisors, whose sum is σ = 79394. Its totient is φ = 79392.

The previous prime is 79379. The next prime is 79397. The reversal of 79393 is 39397.

79393 is nontrivially palindromic in base 13.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71824 + 7569 = 268^2 + 87^2 .

It is an emirp because it is prime and its reverse (39397) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-79393 is a prime.

It is not a weakly prime, because it can be changed into another prime (79397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39696 + 39697.

It is an arithmetic number, because the mean of its divisors is an integer number (39697).

279393 is an apocalyptic number.

It is an amenable number.

79393 is a deficient number, since it is larger than the sum of its proper divisors (1).

79393 is an equidigital number, since it uses as much as digits as its factorization.

79393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5103, while the sum is 31.

The square root of 79393 is about 281.7676347631. The cubic root of 79393 is about 42.9794385201.

The spelling of 79393 in words is "seventy-nine thousand, three hundred ninety-three".