Search a number
-
+
2788380130 = 25278838013
BaseRepresentation
bin1010011000110011…
…0100110111100010
321012022211101110011
42212030310313202
521202311131010
61140404355134
7126045561064
oct24614646742
97168741404
102788380130
111200a71298
126599a5aaa
133558bc293
141c647b734
15114be1a8a
hexa6334de2

2788380130 has 8 divisors (see below), whose sum is σ = 5019084252. Its totient is φ = 1115352048.

The previous prime is 2788380113. The next prime is 2788380173. The reversal of 2788380130 is 310838872.

2788380130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2577288289 + 211091841 = 50767^2 + 14529^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139418997 + ... + 139419016.

Almost surely, 22788380130 is an apocalyptic number.

2788380130 is a deficient number, since it is larger than the sum of its proper divisors (2230704122).

2788380130 is a wasteful number, since it uses less digits than its factorization.

2788380130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278838020.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 2788380130 is about 52805.1146197033. The cubic root of 2788380130 is about 1407.5073122439.

The spelling of 2788380130 in words is "two billion, seven hundred eighty-eight million, three hundred eighty thousand, one hundred thirty".

Divisors: 1 2 5 10 278838013 557676026 1394190065 2788380130