2788128889 is an odd 10-digits composite number following 2788128888
and preceding 2788128890 . In scientific notation, it is written as 2.788128889 × 10^9.
The sum of its digits is 61. It has a total of 2 prime factors and 4 positive divisors.
There are 2205992016 positive integers (up to 2788128889) that are relatively prime to 2788128889.
2788128889 has 4 divisors, whose sum is 2818767760
The reverse of 2788128889 is 9888218872
Previous prime number is 91
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 61
Digital Root 7
Name
two billion seven hundred eighty-eight million one hundred twenty-eight thousand eight hundred eighty-nine
Scientific notation
2.788128889 × 10^9
Engineering notation
2.788128889 × 10^9
Prime Factorization
91 × 30638779
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
2788128889
Product of the distinct prime numbers
The prime factorization of 2788128889 is 91 × 30638779.
Since it has a total of 2 prime factors.
2 , 9 , 18 , 73 , 831 , 715 , 4769 , 4267 , 61413 , 99060 , 878912 , 555924 , 8928969 , 5598432 , 71041706 , 83690462 , 85460180 , 421956022 , 9027084613 , 8543347524
n×2
5576257778
n×3
8364386667
n×4
11152515556
n×5
13940644445
n÷2
1394064444.5
n÷3
929376296.33333
n÷3
697032222.25
n÷5
557625777.8
n2
7773662701676374321
n3
2.1673973551886E+28
n4
6.0429831799434E+37
n5
1.6848615979741E+47
2 √n
52802.73562042
3 √n
1407.4650375002
4 √n
229.7884584143
5 √n
77.457338338208
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-2788128888
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 2788128889 can be divided by 4 positive divisors.
The sum of these divisors (counting 2788128889) is 1, the average is 0.25.
Base
System
Value
2
Binary
10100110001011110111100001111001
3
Ternary
21012022100121210221
4
Quaternary
2212023313201321
5
Quinary
21202230111024
6
Senary
1140355140041
8
Octal
24613674171
10
Decimal
2788128889
12
Duodecimal
6598a4621
16
Hexadecimal
a62f7879
20
Vigesimal
23b5g249
36
Base36
1a3za0p
md5
fde954adb6fcbac186903a8be4d56ae7
sha1
b6a8281b57bd15a3ed1cd100e1bb761f37c543bc
sha256
d69f877187b86d581e4a61321eaa939cd5f5c223aca5cbe2109b5f803eb3568e
sha512
ca329ec9163d9d178fd41444874fd9bda406b3a1311ed584f5cc7ea8120d7e403c577695d5a2ac090071c1e714b56f274005d3d149aa248c44d4c86f7b24130f
ripemd-160
8eebafdffa181f8c7ee294b0c1f0e7e1aa59d049
Diameter
5576257778
Circumference
17518330469.888
Area
2.4421681635071E+19
Volume
9.0787728112938E+28
Surface area
9.7686726540286E+19
Circumference
17518330469.888
Perimeter
11152515556
Area
7773662701676374321
Diagonal
3943009688.468
Surface area
4.6641976210058E+19
Volume
2.1673973551886E+28
Space diagonal
4829180893.7986
Perimeter
8364386667
Area
3.3660946900517E+18
Altitude
2414590446.8993
Surface area
3.3660946900517E+18
Volume
2.554302278966E+27
Height
1314336562.8227