20719989 is an odd 8-digits composite number following 20719988
and preceding 20719990 . In scientific notation, it is written as 2.0719989 × 10^7.
The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors.
There are 13744080 positive integers (up to 20719989) that are relatively prime to 20719989.
20719989 has 16 divisors, whose sum is 30850240
The reverse of 20719989 is 98991702
Previous prime number is 211
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
twenty million seven hundred nineteen thousand nine hundred eighty-nine
Scientific notation
2.0719989 × 10^7
Engineering notation
2.0719989 × 10^6
Prime Factorization
9 × 3 × 211 × 3637
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20719989
Product of the distinct prime numbers
The prime factorization of 20719989 is 9 × 3 × 211 × 3637.
Since it has a total of 4 prime factors.
6 , 9 , 62 , 81 , 928 , 884 , 643 , 8014 , 88447 , 64301 , 430694 , 528862 , 1999447 , 7201017 , 13358118 , 13227280 , 484834008 , 289378669 , 8416073048 , 8748085783
n×2
41439978
n×3
62159967
n×4
82879956
n×5
103599945
n÷2
10359994.5
n÷3
6906663
n÷3
5179997.25
n÷5
4143997.8
n2
429317944160121
n3
8.8954630805003E+21
n4
1.8431389717787E+29
n5
3.8189819220727E+36
2 √n
4551.9214624156
3 √n
274.66069005308
4 √n
67.467929139819
5 √n
29.058815269784
1 , 3 , 9 , 27 , 211 , 633 , 1899 , 3637 , 5697 , 10911 , 32733 , 98199 , 767407 , 2302221 , 6906663 , 20719989
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
-20719988
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 20719989 can be divided by 16 positive divisors.
The sum of these divisors (counting 20719989) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111000010100101110101
3
Ternary
1102222200111000
4
Quaternary
1033002211311
5
Quinary
20301014424
6
Senary
2020033513
8
Octal
117024565
10
Decimal
20719989
12
Duodecimal
6b32899
16
Hexadecimal
13c2975
20
Vigesimal
699jj9
36
Base36
cc3n9
md5
94c0cde05af7ed68eadff844fd6d9e01
sha1
656063892b2326a25282c8bcf2c009a9b2c2c80b
sha256
43ab9beb1f955d94f299848e9aeff385e8aa199be0f50581c9b1cca858eb7abc
sha512
91d6c77943f156e0c618e3335a7bfa1ba0280ce7c5f553749701842b8eb6b55ddcd81e723acde1ce3d05f70893907f8018ae10f5c6c8dabaac07c2d2aeb72057
ripemd-160
0eb215183e1e54349a3236e49d0bb91500d82d29
Diameter
41439978
Circumference
130187530.44972
Area
1.3487420994277E+15
Volume
3.7261228618639E+22
Surface area
5.3949683977108E+15
Circumference
130187530.44972
Perimeter
82879956
Area
429317944160121
Diagonal
29302489.456021
Surface area
2575907664960726
Volume
8.8954630805003E+21
Space diagonal
35888073.680268
Perimeter
62159967
Area
1.8590012297159E+14
Altitude
17944036.840134
Surface area
1.8590012297159E+14
Volume
1.0483403776694E+21
Height
9767496.4853404