Search a number
-
+
6220813 is a prime number
BaseRepresentation
bin10111101110110000001101
3102201001100111
4113232300031
53043031223
6341200021
7103606324
oct27566015
912631314
106220813
113569875
122100011
13139a671
14b7d0bb
1582d30d
hex5eec0d

6220813 has 2 divisors, whose sum is σ = 6220814. Its totient is φ = 6220812.

The previous prime is 6220777. The next prime is 6220817. The reversal of 6220813 is 3180226.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5442889 + 777924 = 2333^2 + 882^2 .

It is a cyclic number.

It is not a de Polignac number, because 6220813 - 213 = 6212621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6220817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3110406 + 3110407.

It is an arithmetic number, because the mean of its divisors is an integer number (3110407).

Almost surely, 26220813 is an apocalyptic number.

It is an amenable number.

6220813 is a deficient number, since it is larger than the sum of its proper divisors (1).

6220813 is an equidigital number, since it uses as much as digits as its factorization.

6220813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 6220813 is about 2494.1557689928. The cubic root of 6220813 is about 183.9143918868.

The spelling of 6220813 in words is "six million, two hundred twenty thousand, eight hundred thirteen".