Search a number
-
+
2814819809 = 19314778981
BaseRepresentation
bin1010011111000110…
…1011110111100001
321021011120122212112
42213301223313201
521231043213214
61143151205105
7126516400514
oct24761536741
97234518775
102814819809
11121498a86a
12666816795
1335b218869
141c9ba0d7b
151171b5a3e
hexa7c6bde1

2814819809 has 8 divisors (see below), whose sum is σ = 3058548480. Its totient is φ = 2580649200.

The previous prime is 2814819769. The next prime is 2814819811. The reversal of 2814819809 is 9089184182.

It is a happy number.

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-2814819809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2814819859) 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 7 ways as a sum of consecutive naturals, for example, 2388902 + ... + 2390079.

It is an arithmetic number, because the mean of its divisors is an integer number (382318560).

Almost surely, 22814819809 is an apocalyptic number.

It is an amenable number.

2814819809 is a deficient number, since it is larger than the sum of its proper divisors (243728671).

2814819809 is a wasteful number, since it uses less digits than its factorization.

2814819809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4779031.

The product of its (nonzero) digits is 331776, while the sum is 50.

The square root of 2814819809 is about 53054.8754498585. The cubic root of 2814819809 is about 1411.9420297967.

The spelling of 2814819809 in words is "two billion, eight hundred fourteen million, eight hundred nineteen thousand, eight hundred nine".

Divisors: 1 19 31 589 4778981 90800639 148148411 2814819809