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2990003 = 9972999
BaseRepresentation
bin1011011001111110110011
312121220111212
423121332303
51231140003
6144030335
734262132
oct13317663
95556455
102990003
111762485
1210023ab
13808c43
1457b919
153e0dd8
hex2d9fb3

2990003 has 4 divisors (see below), whose sum is σ = 2994000. Its totient is φ = 2986008.

The previous prime is 2989997. The next prime is 2990017. The reversal of 2990003 is 3000992.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2990003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2990033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 503 + ... + 2496.

It is an arithmetic number, because the mean of its divisors is an integer number (748500).

22990003 is an apocalyptic number.

2990003 is a deficient number, since it is larger than the sum of its proper divisors (3997).

2990003 is an equidigital number, since it uses as much as digits as its factorization.

2990003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3996.

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 2990003 is about 1729.1625140512. The cubic root of 2990003 is about 144.0645768746.

Adding to 2990003 its reverse (3000992), we get a palindrome (5990995).

The spelling of 2990003 in words is "two million, nine hundred ninety thousand, three".

Divisors: 1 997 2999 2990003