20705989 is an odd 8-digits composite number following 20705988
and preceding 20705990 . In scientific notation, it is written as 2.0705989 × 10^7.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 20682540 positive integers (up to 20705989) that are relatively prime to 20705989.
20705989 has 4 divisors, whose sum is 20729440
The reverse of 20705989 is 98950702
Previous prime number is 919
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
twenty million seven hundred five thousand nine hundred eighty-nine
Scientific notation
2.0705989 × 10^7
Engineering notation
2.0705989 × 10^6
Prime Factorization
919 × 22531
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20705989
Product of the distinct prime numbers
The prime factorization of 20705989 is 919 × 22531.
Since it has a total of 2 prime factors.
7 , 9 , 80 , 5 , 930 , 708 , 1492 , 2509 , 39238 , 40950 , 371311 , 649337 , 7012144 , 7181540 , 63299931 , 25806015 , 891843458 , 614579377 , 4455569586 , 5404333145
n×2
41411978
n×3
62117967
n×4
82823956
n×5
103529945
n÷2
10352994.5
n÷3
6901996.3333333
n÷3
5176497.25
n÷5
4141197.8
n2
428737980468121
n3
8.8774439074551E+21
n4
1.8381625589588E+29
n5
3.8060973726013E+36
2 √n
4550.3833904409
3 √n
274.59881556666
4 √n
67.45652963532
5 √n
29.054887339024
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20705988
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20705989 can be divided by 4 positive divisors.
The sum of these divisors (counting 20705989) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001110111111001011000101
3
Ternary
1102221222021111
4
Quaternary
1032333023011
5
Quinary
20300042424
6
Senary
2015445021
8
Octal
116771305
10
Decimal
20705989
12
Duodecimal
6b26771
16
Hexadecimal
13bf2c5
20
Vigesimal
6984j9
36
Base36
cbsud
md5
c0914c7725962d104ad2d994de5870b0
sha1
240efad22df2c071652b25b18f202492c6cfd986
sha256
b9a9b4e75dedc640506e0d4a1808115dc81ef5e1ed6bb2d4a995df65aaffcd1d
sha512
236196584c6885517e24db57d4a95735a3030dd3c55a7388d6ddae6ff50f237945f80216a88e77aec59159620ae43dfa60bfb4f718b3944899ccd5a24363b9c3
ripemd-160
d1fe4c33516d800842f3c28957c473b44122ad91
Diameter
41411978
Circumference
130099565.85542
Area
1.3469200897536E+15
Volume
3.7185750083089E+22
Surface area
5.3876803590143E+15
Circumference
130099565.85542
Perimeter
82823956
Area
428737980468121
Diagonal
29282690.466148
Surface area
2572427882808726
Volume
8.8774439074551E+21
Space diagonal
35863824.968962
Perimeter
62117967
Area
1.8564899132631E+14
Altitude
17931912.484481
Surface area
1.8564899132631E+14
Volume
1.0462167977608E+21
Height
9760896.8220494