2728165721 is an odd 10-digits composite number following 2728165720
and preceding 2728165722 . In scientific notation, it is written as 2.728165721 × 10^9.
The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors.
There are 2710247040 positive integers (up to 2728165721) that are relatively prime to 2728165721.
2728165721 has 8 divisors, whose sum is 2746136064
The reverse of 2728165721 is 1275618272
Previous prime number is 487
Is Prime? no Number parity odd Number length 10 Sum of Digits 41 Digital Root 5
Name
two billion seven hundred twenty-eight million one hundred sixty-five thousand seven hundred twenty-one
Scientific notation
2.728165721 × 10^9
Engineering notation
2.728165721 × 10^9
Prime Factorization
223 × 487 × 25121
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
2728165721 Product of the distinct prime numbers
The prime factorization of 2728165721 is 223 × 487 × 25121.
Since it has a total of 3 prime factors.
7 , 6 , 16 , 19 , 976 , 909 , 31 , 1695 , 20916 , 89076 , 820435 , 706823 , 1793287 , 5939838 , 16343285 , 59256549 , 750931317 , 379739866 , 9664034125 , 3446552736
n×2
5456331442
n×3
8184497163
n×4
10912662884
n×5
13640828605
n÷2
1364082860.5
n÷3
909388573.66667
n÷3
682041430.25
n÷5
545633144.2
n2
7442888201239449841
n3
2.0305432455857E+28
n4
5.5396584776149E+37
n5
1.5113106364676E+47
2 √n52231.845850975
3 √n1397.3018989276
4 √n228.54287530128
5 √n77.12126588488
8 divisors
τ Total Divisors
8 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-2728165720 Sum of the proper positive divisors of n
A Arithmetic Mean
0.125 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
8 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 2728165721 can be divided by 8 positive divisors.
The sum of these divisors (counting 2728165721) is 1, the average is 0.125.
Base
System
Value
2
Binary
10100010100111001000000101011001
3
Ternary
21001010112011210212
4
Quaternary
2202213020011121
5
Quinary
21041402300341
6
Senary
1130414020505
8
Octal
24247100531
10
Decimal
2728165721
12
Duodecimal
6417a7735
16
Hexadecimal
a29c8159
20
Vigesimal
22cb0e61
36
Base36
194a255
md5
dfe2b9ea3a7dd6349b15234bbf86f87c
sha1
8eb7e3f35e6b16da2f2c9dbe2189664860a9d108
sha256
0a1884403a3ec8c43b0fd865fa7c37f6dbb88c9be544927e39cf6f694d4ddaf7
sha512
1d9dcc7fb1ca565f90ba257bfe016e8a7018ea33ca0b7717962e34f649da6dc87f849df1754332361931913d8a433d592cfdba61cf892ddc01448bc3ed2eec92
ripemd-160
f26715f1a811fab9b2fcb3a05ee24800356e9597
Diameter
5456331442
Circumference
17141570773.738
Area
2.3382522894504E+19
Volume
8.5055196575045E+28
Surface area
9.3530091578016E+19
Circumference
17141570773.738
Perimeter
10912662884
Area
7442888201239449841
Diagonal
3858208963.0396
Surface area
4.4657329207437E+19
Volume
2.0305432455857E+28
Space diagonal
4725321640.2398
Perimeter
8184497163
Area
3.2228651299004E+18
Altitude
2362660820.1199
Surface area
3.2228651299004E+18
Volume
2.393018164077E+27
Height
1286069654.3465