2128889721 is an odd 10-digits composite number following 2128889720
and preceding 2128889722 . In scientific notation, it is written as 2.128889721 × 10^9.
The sum of its digits is 48. It has a total of 4 prime factors and 16 positive divisors.
There are 1212805440 positive integers (up to 2128889721) that are relatively prime to 2128889721.
2128889721 has 16 divisors, whose sum is 2556633728
The reverse of 2128889721 is 1279888212
Previous prime number is 331
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 48
Digital Root 3
Name
two billion one hundred twenty-eight million eight hundred eighty-nine thousand seven hundred twenty-one
Scientific notation
2.128889721 × 10^9
Engineering notation
2.128889721 × 10^9
Prime Factorization
21 × 7 × 331 × 43753
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
2128889721
Product of the distinct prime numbers
The prime factorization of 2128889721 is 21 × 7 × 331 × 43753.
Since it has a total of 4 prime factors.
10 , 2 , 16 , 86 , 592 , 137 , 3147 , 5425 , 19999 , 95140 , 87740 , 51881 , 9361226 , 5480430 , 29629386 , 27418878 , 88443279 , 904754336 , 1534997081 , 7792670177
n×2
4257779442
n×3
6386669163
n×4
8515558884
n×5
10644448605
n÷2
1064444860.5
n÷3
709629907
n÷3
532222430.25
n÷5
425777944.2
n2
4532171444179457841
n3
9.6484932013234E+27
n4
2.0540577999436E+37
n5
4.3728625366397E+46
2 √n
46139.892945259
3 √n
1286.4247538953
4 √n
214.80198543137
5 √n
73.388943048271
1 , 7 , 21 , 147 , 331 , 2317 , 6951 , 43753 , 48657 , 306271 , 918813 , 6431691 , 14482243 , 101375701 , 304127103 , 2128889721
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-2128889720
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 2128889721 can be divided by 16 positive divisors.
The sum of these divisors (counting 2128889721) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1111110111001000100011101111001
3
Ternary
12111100212210200110
4
Quaternary
1332321010131321
5
Quinary
13324443432341
6
Senary
551125254533
8
Octal
17671043571
10
Decimal
2128889721
12
Duodecimal
4b4b64449
16
Hexadecimal
7ee44779
20
Vigesimal
1d55b461
36
Base36
z7hhtl
md5
30b9bda1f7c906449a80cb64d1874b90
sha1
8d021262b51bb2ab6b5c7cb22e69bd4b8bc9fa88
sha256
99b3eca161665c45e77e3e0cd342db12ddf26192f6f9072a08e109f8611777de
sha512
7d381510c6addf5accc72a1c79be5a61e971b5042b8ea21a03ca669a7d8517a6f599741991b4687ab65dee3a342d94a42d7ed57a1a8c9373735e452be137e2d6
ripemd-160
6ba671e0280c3a4d27af754788f05545986c2829
Diameter
4257779442
Circumference
13376208615.593
Area
1.4238236513844E+19
Volume
4.0415513812651E+28
Surface area
5.6952946055375E+19
Circumference
13376208615.593
Perimeter
8515558884
Area
4532171444179457841
Diagonal
3010704716.2349
Surface area
2.7193028665077E+19
Volume
9.6484932013234E+27
Space diagonal
3687345160.4831
Perimeter
6386669163
Area
1.9624878024829E+18
Altitude
1843672580.2416
Surface area
1.9624878024829E+18
Volume
1.1370858284813E+27
Height
1003568238.745