Cookie Consent by
Search a number
2489 = 19131

2489 has 4 divisors (see below), whose sum is σ = 2640. Its totient is φ = 2340.

The previous prime is 2477. The next prime is 2503. The reversal of 2489 is 9842.

2489 is nontrivially palindromic in base 16.

2489 is an esthetic number in base 4, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2489 - 24 = 2473 is a prime.

It is a magnanimous number.

It is a Duffinian number.

2489 is an undulating number in base 16.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (2459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47 + ... + 84.

It is an arithmetic number, because the mean of its divisors is an integer number (660).

22489 is an apocalyptic number.

It is an amenable number.

2489 is a deficient number, since it is larger than the sum of its proper divisors (151).

2489 is a wasteful number, since it uses less digits than its factorization.

2489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150.

The product of its digits is 576, while the sum is 23.

The square root of 2489 is about 49.8898787331. The cubic root of 2489 is about 13.5521530871.

The spelling of 2489 in words is "two thousand, four hundred eighty-nine".

Divisors: 1 19 131 2489