20205989 is an odd 8-digits composite number following 20205988
and preceding 20205990 . In scientific notation, it is written as 2.0205989 × 10^7.
The sum of its digits is 35. It has a total of 3 prime factors and 8 positive divisors.
There are 19648000 positive integers (up to 20205989) that are relatively prime to 20205989.
20205989 has 8 divisors, whose sum is 20767320
The reverse of 20205989 is 98950202
Previous prime number is 1229
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty million two hundred five thousand nine hundred eighty-nine
Scientific notation
2.0205989 × 10^7
Engineering notation
2.0205989 × 10^6
Prime Factorization
41 × 1229 × 401
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20205989
Product of the distinct prime numbers
The prime factorization of 20205989 is 41 × 1229 × 401.
Since it has a total of 3 prime factors.
3 , 10 , 96 , 99 , 34 , 154 , 2140 , 340 , 4582 , 53790 , 578758 , 49031 , 4232217 , 4541553 , 82998646 , 29660301 , 765374043 , 498791324 , 8195073837 , 3188876718
n×2
40411978
n×3
60617967
n×4
80823956
n×5
101029945
n÷2
10102994.5
n÷3
6735329.6666667
n÷3
5051497.25
n÷5
4041197.8
n2
408281991468121
n3
8.2497414285029E+21
n4
1.6669418455717E+29
n5
3.3682208595262E+36
2 √n
4495.1072289769
3 √n
272.37048077175
4 √n
67.045560844674
5 √n
28.913190819179
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
-20205988
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 20205989 can be divided by 8 positive divisors.
The sum of these divisors (counting 20205989) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101000101000110100101
3
Ternary
1102000120101222
4
Quaternary
1031011012211
5
Quinary
20133042424
6
Senary
2001030125
8
Octal
115050645
10
Decimal
20205989
12
Duodecimal
6925345
16
Hexadecimal
13451a5
20
Vigesimal
665ej9
36
Base36
c131h
md5
1ad9d1ac3aa2a319740f2b7a2ad5dc60
sha1
31e0159d02e9b0c49b65b823af8be9671d2b074e
sha256
baa2fc91edc9e407ef121b9ef71d96de1fac85581a114370f71c0928a7679ec3
sha512
d4c5bf2baf988312c7be19c132648514331da143769528562c6f255b9e1791bc44ec0302981122caa81fabf34b5209e57ce8846d5369157df8dea7b08b03fa8c
ripemd-160
d3da2ea4d012843ecf4010175a526d3f4ab3b81a
Diameter
40411978
Circumference
126957973.20183
Area
1.2826557049893E+15
Volume
3.4556436087734E+22
Surface area
5.130622819957E+15
Circumference
126957973.20183
Perimeter
80823956
Area
408281991468121
Diagonal
28575583.684962
Surface area
2449691948808726
Volume
8.2497414285029E+21
Space diagonal
34997799.565178
Perimeter
60617967
Area
1.7679128825955E+14
Altitude
17498899.782589
Surface area
1.7679128825955E+14
Volume
9.7224135118834E+20
Height
9525194.5616539