Search a number
-
+
1334340221 is a prime number
BaseRepresentation
bin100111110001000…
…0110101001111101
310102222210111200012
41033202012221331
510213042341341
6340223313005
745031463504
oct11742065175
93388714605
101334340221
11625222615
12312a4b765
1318359c636
14c92dd83b
157c2250eb
hex4f886a7d

1334340221 has 2 divisors, whose sum is σ = 1334340222. Its totient is φ = 1334340220.

The previous prime is 1334340197. The next prime is 1334340229. The reversal of 1334340221 is 1220434331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1073872900 + 260467321 = 32770^2 + 16139^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1334340221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1334340229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 667170110 + 667170111.

It is an arithmetic number, because the mean of its divisors is an integer number (667170111).

Almost surely, 21334340221 is an apocalyptic number.

It is an amenable number.

1334340221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1334340221 is an equidigital number, since it uses as much as digits as its factorization.

1334340221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 1334340221 is about 36528.6219422524. The cubic root of 1334340221 is about 1100.9194024050.

Adding to 1334340221 its reverse (1220434331), we get a palindrome (2554774552).

The spelling of 1334340221 in words is "one billion, three hundred thirty-four million, three hundred forty thousand, two hundred twenty-one".