20020991 is an odd 8-digits composite number following 20020990
and preceding 20020992 . In scientific notation, it is written as 2.0020991 × 10^7.
The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors.
There are 19241152 positive integers (up to 20020991) that are relatively prime to 20020991.
20020991 has 8 divisors, whose sum is 20807280
The reverse of 20020991 is 19902002
Previous prime number is 233
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million twenty thousand nine hundred ninety-one
Scientific notation
2.0020991 × 10^7
Engineering notation
2.0020991 × 10^6
Prime Factorization
29 × 233 × 2963
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20020991
Product of the distinct prime numbers
The prime factorization of 20020991 is 29 × 233 × 2963.
Since it has a total of 3 prime factors.
1 , 6 , 21 , 69 , 657 , 566 , 6691 , 7046 , 56063 , 94001 , 734887 , 919302 , 5534644 , 3530059 , 14918828 , 58617005 , 651017766 , 66517464 , 358451994 , 1299705090
n×2
40041982
n×3
60062973
n×4
80083964
n×5
100104955
n÷2
10010495.5
n÷3
6673663.6666667
n÷3
5005247.75
n÷5
4004198.2
n2
400840080622081
n3
8.025215646574E+21
n4
1.6067277023312E+29
n5
3.2168280867823E+36
2 √n
4474.4822046802
3 √n
271.53669235604
4 √n
66.89157050541
5 √n
28.860052319748
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
-20020990
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 20020991 can be divided by 8 positive divisors.
The sum of these divisors (counting 20020991) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100010111111011111111
3
Ternary
1101200011122012
4
Quaternary
1030113323333
5
Quinary
20111132431
6
Senary
1553041435
8
Octal
114277377
10
Decimal
20020991
12
Duodecimal
685627b
16
Hexadecimal
1317eff
20
Vigesimal
652c9b
36
Base36
bx4an
md5
5326735ef49e1f40d83ddb7a3d88e427
sha1
f0855322d4a08ae161ba0aaa3e123dee81017c9f
sha256
783e891328d3ea9fa26b3fb9433b532b9ee58664fa88ada45de9482c478a0976
sha512
f3366cf021f070e2ba8925bdf8d1210fee7435b0353ae5b3272446d475107652fdcc270b03fcff2a3597042ff0685242f9047f82b228999d73db5b13fa449993
ripemd-160
39dfbe47434dda0c45ee978e91aa58fa8354bdd3
Diameter
40041982
Circumference
125795596.48637
Area
1.2592762525467E+15
Volume
3.3615944691667E+22
Surface area
5.0371050101867E+15
Circumference
125795596.48637
Perimeter
80083964
Area
400840080622081
Diagonal
28313957.00435
Surface area
2405040483732486
Volume
8.025215646574E+21
Space diagonal
34677373.629879
Perimeter
60062973
Area
1.7356884633686E+14
Altitude
17338686.81494
Surface area
1.7356884633686E+14
Volume
9.4578073402947E+20
Height
9437985.6681166