Search a number
-
+
2750684780 = 225137534239
BaseRepresentation
bin1010001111110100…
…0001111001101100
321002200220021011002
42203331001321230
521113133403110
61132540415432
7125110302104
oct24375017154
97080807132
102750684780
111191765208
12649247578
1334ab5173c
141c1468204
15111747aa5
hexa3f41e6c

2750684780 has 12 divisors (see below), whose sum is σ = 5776438080. Its totient is φ = 1100273904.

The previous prime is 2750684743. The next prime is 2750684791. The reversal of 2750684780 is 874860572.

It is an unprimeable number.

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, 68767100 + ... + 68767139.

It is an arithmetic number, because the mean of its divisors is an integer number (481369840).

Almost surely, 22750684780 is an apocalyptic number.

2750684780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2750684780 is an abundant number, since it is smaller than the sum of its proper divisors (3025753300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2750684780 is a wasteful number, since it uses less digits than its factorization.

2750684780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137534248 (or 137534246 counting only the distinct ones).

The product of its (nonzero) digits is 752640, while the sum is 47.

The square root of 2750684780 is about 52446.9711232212. The cubic root of 2750684780 is about 1401.1359454034.

The spelling of 2750684780 in words is "two billion, seven hundred fifty million, six hundred eighty-four thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 137534239 275068478 550136956 687671195 1375342390 2750684780