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2889131999 = 13222240923
BaseRepresentation
bin1010110000110100…
…1010011111011111
321110100102010000212
42230031022133133
521404104210444
61154404043035
7131411134235
oct25415123737
97410363025
102889131999
1112529266a6
1268769347b
13370737080
141d59c6955
1511d99419e
hexac34a7df

2889131999 has 4 divisors (see below), whose sum is σ = 3111372936. Its totient is φ = 2666891064.

The previous prime is 2889131983. The next prime is 2889132007. The reversal of 2889131999 is 9991319882.

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

It is a cyclic number.

It is not a de Polignac number, because 2889131999 - 24 = 2889131983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2889131909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111120449 + ... + 111120474.

It is an arithmetic number, because the mean of its divisors is an integer number (777843234).

Almost surely, 22889131999 is an apocalyptic number.

2889131999 is a deficient number, since it is larger than the sum of its proper divisors (222240937).

2889131999 is a wasteful number, since it uses less digits than its factorization.

2889131999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222240936.

The product of its digits is 2519424, while the sum is 59.

The square root of 2889131999 is about 53750.6464984376. The cubic root of 2889131999 is about 1424.2595104656.

The spelling of 2889131999 in words is "two billion, eight hundred eighty-nine million, one hundred thirty-one thousand, nine hundred ninety-nine".

Divisors: 1 13 222240923 2889131999