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15330641 is a prime number
BaseRepresentation
bin111010011110…
…110101010001
31001211212200112
4322132311101
512411040031
61304331105
7244210514
oct72366521
931755615
1015330641
118721157
125173a95
133239cb1
142070d7b
15152c62b
hexe9ed51

15330641 has 2 divisors, whose sum is σ = 15330642. Its totient is φ = 15330640.

The previous prime is 15330629. The next prime is 15330643. The reversal of 15330641 is 14603351.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13535041 + 1795600 = 3679^2 + 1340^2 .

It is a cyclic number.

It is not a de Polignac number, because 15330641 - 210 = 15329617 is a prime.

It is a Sophie Germain prime.

Together with 15330643, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (15330643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7665320 + 7665321.

It is an arithmetic number, because the mean of its divisors is an integer number (7665321).

Almost surely, 215330641 is an apocalyptic number.

It is an amenable number.

15330641 is a deficient number, since it is larger than the sum of its proper divisors (1).

15330641 is an equidigital number, since it uses as much as digits as its factorization.

15330641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 15330641 is about 3915.4362464482. The cubic root of 15330641 is about 248.4201223107.

Adding to 15330641 its reverse (14603351), we get a palindrome (29933992).

The spelling of 15330641 in words is "fifteen million, three hundred thirty thousand, six hundred forty-one".