Search a number
-
+
15000889 is a prime number
BaseRepresentation
bin111001001110…
…010100111001
31001020010100111
4321032110321
512320012024
61253304321
7241335241
oct71162471
931203314
1015000889
118516432
1250350a1
133152b87
141dc6b21
1514b4a94
hexe4e539

15000889 has 2 divisors, whose sum is σ = 15000890. Its totient is φ = 15000888.

The previous prime is 15000877. The next prime is 15000901. The reversal of 15000889 is 98800051.

It is a balanced prime because it is at equal distance from previous prime (15000877) and next prime (15000901).

It can be written as a sum of positive squares in only one way, i.e., 13395600 + 1605289 = 3660^2 + 1267^2 .

It is a cyclic number.

It is not a de Polignac number, because 15000889 - 213 = 14992697 is a prime.

It is equal to p970753 and since 15000889 and 970753 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15000889.

It is not a weakly prime, because it can be changed into another prime (15000829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7500444 + 7500445.

It is an arithmetic number, because the mean of its divisors is an integer number (7500445).

Almost surely, 215000889 is an apocalyptic number.

It is an amenable number.

15000889 is a deficient number, since it is larger than the sum of its proper divisors (1).

15000889 is an equidigital number, since it uses as much as digits as its factorization.

15000889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 31.

The square root of 15000889 is about 3873.0981139135. The cubic root of 15000889 is about 246.6260794758.

The spelling of 15000889 in words is "fifteen million, eight hundred eighty-nine", and thus it is an aban number.