20921766 is an even 8-digits composite number following 20921765
and preceding 20921767 . In scientific notation, it is written as 2.0921766 × 10^7.
The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors.
There are 6670664 positive integers (up to 20921766) that are relatively prime to 20921766.
20921766 has 16 divisors, whose sum is 43663104
The reverse of 20921766 is 66712902
Previous prime number is 23
Is Prime? no
Number parity even
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million nine hundred twenty-one thousand seven hundred sixty-six
Scientific notation
2.0921766 × 10^7
Engineering notation
2.0921766 × 10^6
Prime Factorization
2 × 3 × 23 × 151607
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20921766
Product of the distinct prime numbers
The prime factorization of 20921766 is 2 × 3 × 23 × 151607.
Since it has a total of 4 prime factors.
9 , 2 , 23 , 52 , 63 , 538 , 1105 , 3278 , 29307 , 67559 , 900649 , 827845 , 6136689 , 4001388 , 80473840 , 63741459 , 491039635 , 726574494 , 9299346848 , 5106738830
n×2
41843532
n×3
62765298
n×4
83687064
n×5
104608830
n÷2
10460883
n÷3
6973922
n÷3
5230441.5
n÷5
4184353.2
n2
437720292558756
n3
9.1578815343658E+21
n4
1.9159905451772E+29
n5
4.008590584441E+36
2 √n
4574.0317008084
3 √n
275.54938547242
4 √n
67.631588039971
5 √n
29.115192648645
1 , 2 , 3 , 6 , 23 , 46 , 69 , 138 , 151607 , 303214 , 454821 , 909642 , 3486961 , 6973922 , 10460883 , 20921766
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
-20921765
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 20921766 can be divided by 16 positive divisors.
The sum of these divisors (counting 20921766) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111110011110110100110
3
Ternary
1110100221021020
4
Quaternary
1033303312212
5
Quinary
20323444031
6
Senary
2024232010
8
Octal
117636646
10
Decimal
20921766
12
Duodecimal
700b606
16
Hexadecimal
13f3da6
20
Vigesimal
6af486
36
Base36
cgfc6
md5
bf6041d1d01c974116166ee20191074c
sha1
f0ef17698026e9d05708195802383997c68add47
sha256
a4267bf3ed6b74686e94741d164be78d47516ce5f416190deae83444b971fd3a
sha512
011ab3844469de7f4cc5e46c9096f3f73f7ff0b60b363986bc90d7c7f5b8c867fe84d928c8152127ef40e7a682b0c79a2cae7637b69301a386cdf96fbb221a16
ripemd-160
8625cd7d1ccd7a8856f7649b250a33ace662ad80
Diameter
41843532
Circumference
131455332.73145
Area
1.3751388554298E+15
Volume
3.8360444467746E+22
Surface area
5.5005554217191E+15
Circumference
131455332.73145
Perimeter
83687064
Area
437720292558756
Diagonal
29587845.225996
Surface area
2626321755352536
Volume
9.1578815343658E+21
Space diagonal
36237561.696067
Perimeter
62765298
Area
1.8953844655392E+14
Altitude
18118780.848034
Surface area
1.8953844655392E+14
Volume
1.0792666890422E+21
Height
9862615.0753321