Search a number
-
+
7930090793 = 174289108761
BaseRepresentation
bin1110110001010101…
…11001010100101001
3202110122212100111102
413120222321110221
5112220100401133
63350521211145
7400341442142
oct73052712451
922418770442
107930090793
1133aa369649
121653930ab5
13994c06a21
145532aaac9
153162db7e8
hex1d8ab9529

7930090793 has 8 divisors (see below), whose sum is σ = 8398601640. Its totient is φ = 7461806080.

The previous prime is 7930090783. The next prime is 7930090799. The reversal of 7930090793 is 3970900397.

It can be written as a sum of positive squares in 4 ways, for example, as 5847355024 + 2082735769 = 76468^2 + 45637^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-7930090793 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7930090799) 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 7 ways as a sum of consecutive naturals, for example, 18533 + ... + 127293.

It is an arithmetic number, because the mean of its divisors is an integer number (1049825205).

Almost surely, 27930090793 is an apocalyptic number.

It is an amenable number.

7930090793 is a deficient number, since it is larger than the sum of its proper divisors (468510847).

7930090793 is a wasteful number, since it uses less digits than its factorization.

7930090793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113067.

The product of its (nonzero) digits is 321489, while the sum is 47.

The square root of 7930090793 is about 89051.0572256164. The cubic root of 7930090793 is about 1994.1571800999.

The spelling of 7930090793 in words is "seven billion, nine hundred thirty million, ninety thousand, seven hundred ninety-three".

Divisors: 1 17 4289 72913 108761 1848937 466475929 7930090793