Search a number
-
+
2993830909 is a prime number
BaseRepresentation
bin1011001001110010…
…0011101111111101
321201122102100221021
42302130203233331
522112410042114
61213024104141
7134122066666
oct26234435775
97648370837
102993830909
1112a6a37523
126b6765051
133893345a4
1420587c36d
15127c76024
hexb2723bfd

2993830909 has 2 divisors, whose sum is σ = 2993830910. Its totient is φ = 2993830908.

The previous prime is 2993830907. The next prime is 2993830919. The reversal of 2993830909 is 9090383992.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2642268409 + 351562500 = 51403^2 + 18750^2 .

It is a cyclic number.

It is not a de Polignac number, because 2993830909 - 21 = 2993830907 is a prime.

Together with 2993830907, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2993830907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1496915454 + 1496915455.

It is an arithmetic number, because the mean of its divisors is an integer number (1496915455).

Almost surely, 22993830909 is an apocalyptic number.

It is an amenable number.

2993830909 is a deficient number, since it is larger than the sum of its proper divisors (1).

2993830909 is an equidigital number, since it uses as much as digits as its factorization.

2993830909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 944784, while the sum is 52.

The square root of 2993830909 is about 54715.9109309166. The cubic root of 2993830909 is about 1441.2602953560.

The spelling of 2993830909 in words is "two billion, nine hundred ninety-three million, eight hundred thirty thousand, nine hundred nine".