20202987 is an odd 8-digits composite number following 20202986
and preceding 20202988 . In scientific notation, it is written as 2.0202987 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 10865280 positive integers (up to 20202987) that are relatively prime to 20202987.
20202987 has 8 divisors, whose sum is 22410432
The reverse of 20202987 is 78920202
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million two hundred two thousand nine hundred eighty-seven
Scientific notation
2.0202987 × 10^7
Engineering notation
2.0202987 × 10^6
Prime Factorization
21 × 17 × 56591
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20202987
Product of the distinct prime numbers
The prime factorization of 20202987 is 21 × 17 × 56591.
Since it has a total of 3 prime factors.
2 , 7 , 60 , 85 , 311 , 668 , 7330 , 3589 , 16992 , 44903 , 125546 , 58698 , 7155391 , 690810 , 17852324 , 54293593 , 272354010 , 225205630 , 5494692769 , 6746082318
n×2
40405974
n×3
60608961
n×4
80811948
n×5
101014935
n÷2
10101493.5
n÷3
6734329
n÷3
5050746.75
n÷5
4040597.4
n2
408160683722169
n3
8.2460649871501E+21
n4
1.6659514373655E+29
n5
3.3657195231726E+36
2 √n
4494.773297954
3 √n
272.35699142659
4 √n
67.043070469318
5 √n
28.912331642649
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
-20202986
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 20202987 can be divided by 8 positive divisors.
The sum of these divisors (counting 20202987) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101000100010111101011
3
Ternary
1102000102021210
4
Quaternary
1031010113223
5
Quinary
20132443422
6
Senary
2001004203
8
Octal
115042753
10
Decimal
20202987
12
Duodecimal
6923663
16
Hexadecimal
13445eb
20
Vigesimal
665797
36
Base36
c10q3
md5
112004d18ad7910be2c065828fe13e3d
sha1
542779d401098c5bfbb7e3d19345b9080dacc6a2
sha256
97d0ed37622d6cdf88b9aa0931255088ed48017a61d55109e77f5f4f192f385f
sha512
35ec4035d383586b72cd5bd0c9032ef0701c9082fb31ef97fe006ebf35f58cc24d4da92cd64df18ff226cda7e1b4a909b976a7ba3651dfc042b8f33d5dfefb02
ripemd-160
cce8a176c35ae0ac8324922137e36cb21f8fdfe5
Diameter
40405974
Circumference
126939111.07954
Area
1.2822746054658E+15
Volume
3.4541036246206E+22
Surface area
5.129098421863E+15
Circumference
126939111.07954
Perimeter
80811948
Area
408160683722169
Diagonal
28571338.215847
Surface area
2448964102333014
Volume
8.2460649871501E+21
Space diagonal
34992599.948654
Perimeter
60608961
Area
1.7673876046471E+14
Altitude
17496299.974327
Surface area
1.7673876046471E+14
Volume
9.718080784198E+20
Height
9523779.4052824