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2806984073 = 24677113749
BaseRepresentation
bin1010011101001111…
…0010110110001001
321020121211120021002
42213103302312021
521222041442243
61142311224345
7126362654015
oct24723626611
97217746232
102806984073
111210518753
126640780b5
1335970412a
141c8b21545
15116668eb8
hexa74f2d89

2806984073 has 4 divisors (see below), whose sum is σ = 2807122500. Its totient is φ = 2806845648.

The previous prime is 2806984067. The next prime is 2806984097. The reversal of 2806984073 is 3704896082.

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 1420762249 + 1386221824 = 37693^2 + 37232^2 .

It is a cyclic number.

It is not a de Polignac number, because 2806984073 - 214 = 2806967689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2806984673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32198 + ... + 81551.

It is an arithmetic number, because the mean of its divisors is an integer number (701780625).

Almost surely, 22806984073 is an apocalyptic number.

It is an amenable number.

2806984073 is a deficient number, since it is larger than the sum of its proper divisors (138427).

2806984073 is a wasteful number, since it uses less digits than its factorization.

2806984073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138426.

The product of its (nonzero) digits is 580608, while the sum is 47.

The square root of 2806984073 is about 52980.9784073492. The cubic root of 2806984073 is about 1410.6306507707.

The spelling of 2806984073 in words is "two billion, eight hundred six million, nine hundred eighty-four thousand, seventy-three".

Divisors: 1 24677 113749 2806984073