Search a number
-
+
1422331913 is a prime number
BaseRepresentation
bin101010011000111…
…0001000000001001
310200010100221120202
41110301301000021
510403104110123
6353045301545
750150423162
oct12461610011
93603327522
101422331913
1166a962022
123384048b5
1319889a422
14d6c86769
1584d06a28
hex54c71009

1422331913 has 2 divisors, whose sum is σ = 1422331914. Its totient is φ = 1422331912.

The previous prime is 1422331909. The next prime is 1422331931. The reversal of 1422331913 is 3191332241.

Together with next prime (1422331931) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 762201664 + 660130249 = 27608^2 + 25693^2 .

It is an emirp because it is prime and its reverse (3191332241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1422331913 - 22 = 1422331909 is a prime.

It is not a weakly prime, because it can be changed into another prime (1422331973) 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, 711165956 + 711165957.

It is an arithmetic number, because the mean of its divisors is an integer number (711165957).

Almost surely, 21422331913 is an apocalyptic number.

It is an amenable number.

1422331913 is a deficient number, since it is larger than the sum of its proper divisors (1).

1422331913 is an equidigital number, since it uses as much as digits as its factorization.

1422331913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 29.

The square root of 1422331913 is about 37713.8159432323. The cubic root of 1422331913 is about 1124.6057978211.

The spelling of 1422331913 in words is "one billion, four hundred twenty-two million, three hundred thirty-one thousand, nine hundred thirteen".