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1814427829 is a prime number
BaseRepresentation
bin110110000100101…
…1111100010110101
311200110011111001201
41230021133202311
512203443142304
6500013252501
762651245024
oct15411374265
94613144051
101814427829
11851219535
12427794131
1322bba2146
14132d908bb
15a94583a4
hex6c25f8b5

1814427829 has 2 divisors, whose sum is σ = 1814427830. Its totient is φ = 1814427828.

The previous prime is 1814427763. The next prime is 1814427851. The reversal of 1814427829 is 9287244181.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1544647204 + 269780625 = 39302^2 + 16425^2 .

It is an emirp because it is prime and its reverse (9287244181) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1814427829 - 215 = 1814395061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1814497829) 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, 907213914 + 907213915.

It is an arithmetic number, because the mean of its divisors is an integer number (907213915).

Almost surely, 21814427829 is an apocalyptic number.

It is an amenable number.

1814427829 is a deficient number, since it is larger than the sum of its proper divisors (1).

1814427829 is an equidigital number, since it uses as much as digits as its factorization.

1814427829 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 258048, while the sum is 46.

The square root of 1814427829 is about 42596.1011009224. The cubic root of 1814427829 is about 1219.6818638810.

The spelling of 1814427829 in words is "one billion, eight hundred fourteen million, four hundred twenty-seven thousand, eight hundred twenty-nine".