2021398945 is an odd 10-digits composite number following 2021398944
and preceding 2021398946 . In scientific notation, it is written as 2.021398945 × 10^9.
The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors.
There are 1613044224 positive integers (up to 2021398945) that are relatively prime to 2021398945.
2021398945 has 8 divisors, whose sum is 2431791144
The reverse of 2021398945 is 5498931202
Previous prime number is 397
Is Prime? no Number parity odd Number length 10 Sum of Digits 43 Digital Root 7
Name
two billion twenty-one million three hundred ninety-eight thousand nine hundred forty-five
Scientific notation
2.021398945 × 10^9
Engineering notation
2.021398945 × 10^9
Prime Factorization
5 × 397 × 1018337
Composite number
ω Distinct Factors
3 Total number of distinct prime factors
Ω Total Factors
3 Total number of prime factors
rad Radical
2021398945 Product of the distinct prime numbers
The prime factorization of 2021398945 is 5 × 397 × 1018337.
Since it has a total of 3 prime factors.
7 , 6 , 60 , 56 , 792 , 944 , 4749 , 5565 , 26686 , 92788 , 172277 , 792973 , 5584959 , 4300944 , 27371465 , 46285150 , 796494633 , 207886022 , 9466975804 , 5106016414
n×2
4042797890
n×3
6064196835
n×4
8085595780
n×5
10106994725
n÷2
1010699472.5
n÷3
673799648.33333
n÷3
505349736.25
n÷5
404279789
n2
4086053694847113025
n3
8.2595446279773E+27
n4
1.6695834797174E+37
n5
3.3748942844901E+46
2 √n44959.970473745
3 √n1264.3986153415
4 √n212.03766286616
5 √n72.632402024199
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
-2021398944 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 2021398945 can be divided by 8 positive divisors.
The sum of these divisors (counting 2021398945) is 1, the average is 0.125.
Base
System
Value
2
Binary
1111000011111000001100110100001
3
Ternary
12012212121201001121
4
Quaternary
1320133001212201
5
Quinary
13114434231240
6
Senary
532325332241
8
Octal
17037014641
10
Decimal
2021398945
12
Duodecimal
484b67081
16
Hexadecimal
787c19a1
20
Vigesimal
1bbdeh75
36
Base36
xfhlep
md5
ecba69d0fa991a6ffa1fa0a813fb97e7
sha1
43819d5d7c7660d951904d38cb39d907e381e58a
sha256
82b0347b4dd7cb292bb8793d19e28b059f8a1dc870967a83d3daac4c4f48dca2
sha512
73baa068d5522ecbfa81484c89721e1cfe79c4e1efabf50256a0aae0d1a644284cc842d3dd48bcb7f02ff18a876cbb43ac238512fd7504ef19f94b5df95cca94
ripemd-160
cfc475b880a85936c4bb5149048db66677f4586b
Diameter
4042797890
Circumference
12700824151.172
Area
1.2836716269905E+19
Volume
3.4597499633667E+28
Surface area
5.134686507962E+19
Circumference
12700824151.172
Perimeter
8085595780
Area
4086053694847113025
Diagonal
2858689802.9857
Surface area
2.4516322169083E+19
Volume
8.2595446279773E+27
Space diagonal
3501165675.1061
Perimeter
6064196835
Area
1.7693131504824E+18
Altitude
1750582837.5531
Surface area
1.7693131504824E+18
Volume
9.7339666932595E+26
Height
952896600.99522