20991010 is an even 8-digits composite number following 20991009
and preceding 20991011 . In scientific notation, it is written as 2.0991010 × 10^7.
The sum of its digits is 22. It has a total of 4 prime factors and 16 positive divisors.
There are 7954416 positive integers (up to 20991010) that are relatively prime to 20991010.
20991010 has 16 divisors, whose sum is 39772800
The reverse of 20991010 is 01019902
Previous prime number is 19
Is Prime? no
Number parity even
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty million nine hundred ninety-one thousand ten
Scientific notation
2.0991010 × 10^7
Engineering notation
2.0991010 × 10^6
Prime Factorization
2 × 5 × 19 × 110479
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20991010
Product of the distinct prime numbers
The prime factorization of 20991010 is 2 × 5 × 19 × 110479.
Since it has a total of 4 prime factors.
4 , 7 , 3 , 83 , 571 , 781 , 7039 , 3589 , 49672 , 34168 , 524660 , 990319 , 3824043 , 6748872 , 58003968 , 11473829 , 437708330 , 929507757 , 1585975102 , 7317970333
n×2
41982020
n×3
62973030
n×4
83964040
n×5
104955050
n÷2
10495505
n÷3
6997003.3333333
n÷3
5247752.5
n÷5
4198202
n2
440622500820100
n3
9.2491113209397E+21
n4
1.9414818822896E+29
n5
4.075366560596E+36
2 √n
4581.5947005382
3 √n
275.85304260875
4 √n
67.687478166484
5 √n
29.134439481879
1 , 2 , 5 , 10 , 19 , 38 , 95 , 190 , 110479 , 220958 , 552395 , 1104790 , 2099101 , 4198202 , 10495505 , 20991010
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
-20991009
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 20991010 can be divided by 16 positive divisors.
The sum of these divisors (counting 20991010) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000000100110000100010
3
Ternary
1110111110020211
4
Quaternary
1100010300202
5
Quinary
20333203020
6
Senary
2025524334
8
Octal
120046042
10
Decimal
20991010
12
Duodecimal
70436aa
16
Hexadecimal
1404c22
20
Vigesimal
6b3haa
36
Base36
chwrm
md5
dd2ef279fe631b42d8e7ccabdccb867d
sha1
aad65f2644f3cdc33f30e726763a6e219c9206c9
sha256
37625347a7ffbd0002b5a591ef47c66c7d553f0c5be294dae52060bc34093cbf
sha512
d1a6caa02ed2111c0ac23398b922658250bd9ef311e6ef63edf1f9bbe9aa194ca059a82935033d9dff3d983368c86748a583e19a9a7ae4fa80db0027eef33210
ripemd-160
e264ed71e432b6e638e1fb363e583eb26916dbd1
Diameter
41982020
Circumference
131890405.61486
Area
1.3842564115828E+15
Volume
3.8742586904131E+22
Surface area
5.5370256463312E+15
Circumference
131890405.61486
Perimeter
83964040
Area
440622500820100
Diagonal
29685771.029909
Surface area
2643735004920600
Volume
9.2491113209397E+21
Space diagonal
36357495.822186
Perimeter
62973030
Area
1.9079513959462E+14
Altitude
18178747.911093
Surface area
1.9079513959462E+14
Volume
1.0900182224976E+21
Height
9895257.0099698