20999728 is an even 8-digits composite number following 20999727
and preceding 20999729 . In scientific notation, it is written as 2.0999728 × 10^7.
The sum of its digits is 46. It has a total of 6 prime factors and 20 positive divisors.
There are 10381184 positive integers (up to 20999728) that are relatively prime to 20999728.
20999728 has 20 divisors, whose sum is 41146920
The reverse of 20999728 is 82799902
Previous prime number is 89
Is Prime? no
Number parity even
Number length 8
Sum of Digits 46
Digital Root 1
Name
twenty million nine hundred ninety-nine thousand seven hundred twenty-eight
Scientific notation
2.0999728 × 10^7
Engineering notation
2.0999728 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 89 × 14747
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
2624966
Product of the distinct prime numbers
The prime factorization of 20999728 is 2 × 2 × 2 × 2 × 89 × 14747.
Since it has a total of 6 prime factors.
10 , 5 , 41 , 29 , 777 , 199 , 3038 , 3022 , 69372 , 42211 , 447597 , 710954 , 7391049 , 4361067 , 89583330 , 46173319 , 285102111 , 883041924 , 424998951 , 3584463049
n×2
41999456
n×3
62999184
n×4
83998912
n×5
104998640
n÷2
10499864
n÷3
6999909.3333333
n÷3
5249932
n÷5
4199945.6
n2
440988576073984
n3
9.260640148661E+21
n4
1.9447092422776E+29
n5
4.0838365126916E+36
2 √n
4582.5460172267
3 √n
275.8912264784
4 √n
67.694505074095
5 √n
29.136859106836
1 , 2 , 4 , 8 , 16 , 89 , 178 , 356 , 712 , 1424 , 14747 , 29494 , 58988 , 117976 , 235952 , 1312483 , 2624966 , 5249932 , 10499864 , 20999728
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20999727
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20999728 can be divided by 20 positive divisors.
The sum of these divisors (counting 20999728) is 1, the average is 0.05.
Base
System
Value
2
Binary
1010000000110111000110000
3
Ternary
1110111220012201
4
Quaternary
1100012320300
5
Quinary
20333442403
6
Senary
2030032544
8
Octal
120067060
10
Decimal
20999728
12
Duodecimal
7048754
16
Hexadecimal
1406e30
20
Vigesimal
6b4j68
36
Base36
ci3hs
md5
6984f57d6031bd64c30128645484f4d9
sha1
99a32a0700045af4273e1d66e59856d47cee2cbb
sha256
5ce40fbb84cf4bc4b643e4bb2ee0de2c1ee8476772b54b268c4c28d990e4bcbf
sha512
3ad32d52ac7d6a21f00928457dec87a85ce2fd5e158cc0d255f486b2812522cdba87902775806ede1af7b92c49566df5347bb1819d6a8043b9f5a501443e3dc2
ripemd-160
d718f82f9e7625b384164a0eaec5506ce0161615
Diameter
41999456
Circumference
131945182.42437
Area
1.3854064709111E+15
Volume
3.8790878744763E+22
Surface area
5.5416258836442E+15
Circumference
131945182.42437
Perimeter
83998912
Area
440988576073984
Diagonal
29698100.143746
Surface area
2645931456443904
Volume
9.260640148661E+21
Space diagonal
36372595.841127
Perimeter
62999184
Area
1.909536548294E+14
Altitude
18186297.920563
Surface area
1.909536548294E+14
Volume
1.0913769078744E+21
Height
9899366.714582