2021381861 is an odd 10-digits composite number following 2021381860
and preceding 2021381862 . In scientific notation, it is written as 2.021381861 × 10^9.
The sum of its digits is 32. It has a total of 4 prime factors and 16 positive divisors.
There are 1898694720 positive integers (up to 2021381861) that are relatively prime to 2021381861.
2021381861 has 16 divisors, whose sum is 2145951360
The reverse of 2021381861 is 1681831202
Previous prime number is 941
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 32
Digital Root 5
Name
two billion twenty-one million three hundred eighty-one thousand eight hundred sixty-one
Scientific notation
2.021381861 × 10^9
Engineering notation
2.021381861 × 10^9
Prime Factorization
19 × 167 × 941 × 677
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
2021381861
Product of the distinct prime numbers
The prime factorization of 2021381861 is 19 × 167 × 941 × 677.
Since it has a total of 4 prime factors.
3 , 1 , 85 , 55 , 178 , 878 , 4743 , 5254 , 77097 , 57358 , 496453 , 478616 , 9626735 , 7176828 , 17753425 , 79088669 , 304028642 , 366219402 , 387618296 , 1377033575
n×2
4042763722
n×3
6064145583
n×4
8085527444
n×5
10106909305
n÷2
1010690930.5
n÷3
673793953.66667
n÷3
505345465.25
n÷5
404276372.2
n2
4085984627979823321
n3
8.2593352113232E+27
n4
1.6695270380087E+37
n5
3.3747516710799E+46
2 √n
44959.780482115
3 √n
1264.3950532792
4 √n
212.03721485182
5 √n
72.63227925218
1 , 19 , 167 , 677 , 941 , 3173 , 12863 , 17879 , 113059 , 157147 , 637057 , 2148121 , 2985793 , 12104083 , 106388519 , 2021381861
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
-2021381860
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 2021381861 can be divided by 16 positive divisors.
The sum of these divisors (counting 2021381861) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1111000011110111101011011100101
3
Ternary
12012212120211121212
4
Quaternary
1320132331123211
5
Quinary
13114433204421
6
Senary
532325121205
8
Octal
17036753345
10
Decimal
2021381861
12
Duodecimal
484b59205
16
Hexadecimal
787bd6e5
20
Vigesimal
1bbdced1
36
Base36
xfh885
md5
d03d3a4575071c50cf9ac546e47fe25d
sha1
2f533cb9efc9d67f9fd49d826f1c5d82bb88306f
sha256
c63d9d5331c2e2db4b6da93e3270f7f6c4ce5d404578aeed53d6d9122be4bdf6
sha512
6871974ba2bf631cf05b27f2bea81a9f80cca04511c1346e2fc7cc0a771b33e0fdb6469cd7661107184895ab1a8e6f8a7e091547bb89489dfadf858c4bd9c608
ripemd-160
3e91bfddb32258b75465d7dc4e244bf33c48af09
Diameter
4042763722
Circumference
12700716809.235
Area
1.2836499289942E+19
Volume
3.4596622431238E+28
Surface area
5.1345997159769E+19
Circumference
12700716809.235
Perimeter
8085527444
Area
4085984627979823321
Diagonal
2858665642.5612
Surface area
2.4515907767879E+19
Volume
8.2593352113232E+27
Space diagonal
3501136084.7501
Perimeter
6064145583
Area
1.7692832436516E+18
Altitude
1750568042.3751
Surface area
1.7692832436516E+18
Volume
9.7337198933658E+26
Height
952888547.52039