2021000805 is an odd 10-digits composite number following 2021000804
and preceding 2021000806 . In scientific notation, it is written as 2.021000805 × 10^9.
The sum of its digits is 18. It has a total of 4 prime factors and 16 positive divisors.
There are 1076755680 positive integers (up to 2021000805) that are relatively prime to 2021000805.
2021000805 has 16 divisors, whose sum is 2697446400
The reverse of 2021000805 is 5080001202
Previous prime number is 991
Is Prime? no
Number parity odd
Number length 10
Sum of Digits 18
Digital Root 9
Name
two billion twenty-one million eight hundred five
Scientific notation
2.021000805 × 10^9
Engineering notation
2.021000805 × 10^9
Prime Factorization
9 × 5 × 991 × 45319
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
2021000805
Product of the distinct prime numbers
The prime factorization of 2021000805 is 9 × 5 × 991 × 45319.
Since it has a total of 4 prime factors.
9 , 3 , 78 , 40 , 987 , 963 , 6098 , 8003 , 68476 , 36594 , 269798 , 356913 , 9264067 , 5359008 , 99154830 , 9842675 , 440972570 , 573811643 , 4233738955 , 9133351592
n×2
4042001610
n×3
6063002415
n×4
8084003220
n×5
10105004025
n÷2
1010500402.5
n÷3
673666935
n÷3
505250201.25
n÷5
404200161
n2
4084444253810648025
n3
8.2546651249289E+27
n4
1.6682684862487E+37
n5
3.3715719536647E+46
2 √n
44955.542539269
3 √n
1264.3155968095
4 √n
212.02722122234
5 √n
72.629540625347
1 , 5 , 9 , 45 , 991 , 4955 , 8919 , 44595 , 45319 , 226595 , 407871 , 2039355 , 44911129 , 224555645 , 404200161 , 2021000805
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
-2021000804
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 2021000805 can be divided by 16 positive divisors.
The sum of these divisors (counting 2021000805) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1111000011101100000011001100101
3
Ternary
12012211212110220200
4
Quaternary
1320131200121211
5
Quinary
13114334011210
6
Senary
532313021113
8
Octal
17035403145
10
Decimal
2021000805
12
Duodecimal
4849b4799
16
Hexadecimal
78760665
20
Vigesimal
1bbb5205
36
Base36
xf9279
md5
13afbdf2109e30c4b4a43f15c504853d
sha1
9edffa866a49998552e9d68b20d0ddc182f4361c
sha256
1082bdf408d1769983bbb0b2faf4b049be23088bb6a52329df122320342998a7
sha512
57d3588941f1b4295c9c504f9a72b71caf64cec83d27cdea2122ef3f2d447c21c98c1fbdb0855242385c84a2851f46c337fe47924c9def9266b13a01d9b1a366
ripemd-160
01467227e89085f94855d30b17a3cea82a13d8e3
Diameter
4042001610
Circumference
12698322563.774
Area
1.2831660061769E+19
Volume
3.4577060419094E+28
Surface area
5.1326640247074E+19
Circumference
12698322563.774
Perimeter
8084003220
Area
4084444253810648025
Diagonal
2858126747.9979
Surface area
2.4506665522864E+19
Volume
8.2546651249289E+27
Space diagonal
3500476076.3976
Perimeter
6063002415
Area
1.7686162420707E+18
Altitude
1750238038.1988
Surface area
1.7686162420707E+18
Volume
9.7282161437689E+26
Height
952708915.99931