Search a number
-
+
15485441 is a prime number
BaseRepresentation
bin111011000100…
…101000000001
31002010202000212
4323010220001
512431013231
61311523505
7245424026
oct73045001
932122025
1015485441
118817494
125229595
1332925aa
1420b154d
15155d42b
hexec4a01

15485441 has 2 divisors, whose sum is σ = 15485442. Its totient is φ = 15485440.

The previous prime is 15485429. The next prime is 15485447. The reversal of 15485441 is 14458451.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15437041 + 48400 = 3929^2 + 220^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-15485441 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 15485398 and 15485407.

It is not a weakly prime, because it can be changed into another prime (15485447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7742720 + 7742721.

It is an arithmetic number, because the mean of its divisors is an integer number (7742721).

Almost surely, 215485441 is an apocalyptic number.

It is an amenable number.

15485441 is a deficient number, since it is larger than the sum of its proper divisors (1).

15485441 is an equidigital number, since it uses as much as digits as its factorization.

15485441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12800, while the sum is 32.

The square root of 15485441 is about 3935.1545077671. The cubic root of 15485441 is about 249.2534582540.

The spelling of 15485441 in words is "fifteen million, four hundred eighty-five thousand, four hundred forty-one".