Search a number
-
+
2990489 = 8933601
BaseRepresentation
bin1011011010000110011001
312121221011212
423122012121
51231143424
6144032505
734263425
oct13320631
95557155
102990489
111762887
121002735
13809228
1457bb85
153e110e
hex2da199

2990489 has 4 divisors (see below), whose sum is σ = 3024180. Its totient is φ = 2956800.

The previous prime is 2990459. The next prime is 2990497. The reversal of 2990489 is 9840992.

2990489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 211600 + 2778889 = 460^2 + 1667^2 .

It is a cyclic number.

It is not a de Polignac number, because 2990489 - 216 = 2924953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2990459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16712 + ... + 16889.

It is an arithmetic number, because the mean of its divisors is an integer number (756045).

22990489 is an apocalyptic number.

It is an amenable number.

2990489 is a deficient number, since it is larger than the sum of its proper divisors (33691).

2990489 is an equidigital number, since it uses as much as digits as its factorization.

2990489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33690.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 2990489 is about 1729.3030387992. The cubic root of 2990489 is about 144.0723819494.

The spelling of 2990489 in words is "two million, nine hundred ninety thousand, four hundred eighty-nine".

Divisors: 1 89 33601 2990489