Search a number
-
+
3115009 is a prime number
BaseRepresentation
bin1011111000100000000001
312212020222201
423320200001
51244140014
6150433201
735322442
oct13704001
95766881
103115009
111838397
121062801
13850b01
145b12c9
15417e74
hex2f8801

3115009 has 2 divisors, whose sum is σ = 3115010. Its totient is φ = 3115008.

The previous prime is 3115003. The next prime is 3115027. The reversal of 3115009 is 9005113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2310400 + 804609 = 1520^2 + 897^2 .

It is a cyclic number.

It is not a de Polignac number, because 3115009 - 29 = 3114497 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3115003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1557504 + 1557505.

It is an arithmetic number, because the mean of its divisors is an integer number (1557505).

It is a Proth number, since it is equal to 1521 ⋅ 211 + 1 and 1521 < 211.

Almost surely, 23115009 is an apocalyptic number.

It is an amenable number.

3115009 is a deficient number, since it is larger than the sum of its proper divisors (1).

3115009 is an equidigital number, since it uses as much as digits as its factorization.

3115009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 135, while the sum is 19.

The square root of 3115009 is about 1764.9388091376. The cubic root of 3115009 is about 146.0449133104.

The spelling of 3115009 in words is "three million, one hundred fifteen thousand, nine".