20921799 is an odd 8-digits composite number following 20921798
and preceding 20921800 . In scientific notation, it is written as 2.0921799 × 10^7.
The sum of its digits is 39. It has a total of 2 prime factors and 4 positive divisors.
There are 13947864 positive integers (up to 20921799) that are relatively prime to 20921799.
20921799 has 4 divisors, whose sum is 27895736
The reverse of 20921799 is 99712902
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty million nine hundred twenty-one thousand seven hundred ninety-nine
Scientific notation
2.0921799 × 10^7
Engineering notation
2.0921799 × 10^6
Prime Factorization
3 × 6973933
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20921799
Product of the distinct prime numbers
The prime factorization of 20921799 is 3 × 6973933.
Since it has a total of 2 prime factors.
2 , 10 , 41 , 26 , 89 , 176 , 6521 , 7750 , 51822 , 14147 , 973674 , 717589 , 9858593 , 2459355 , 66764943 , 81453373 , 312436188 , 372076187 , 8870075860 , 702429752
n×2
41843598
n×3
62765397
n×4
83687196
n×5
104608995
n÷2
10460899.5
n÷3
6973933
n÷3
5230449.75
n÷5
4184359.8
n2
437721673396401
n3
9.1579248687431E+21
n4
1.9160026336095E+29
n5
4.0086221983848E+36
2 √n
4574.0353081278
3 √n
275.54953034745
4 √n
67.631614708861
5 √n
29.115201833346
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
-20921798
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 20921799 can be divided by 4 positive divisors.
The sum of these divisors (counting 20921799) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111110011110111000111
3
Ternary
1110100221022110
4
Quaternary
1033303313013
5
Quinary
20323444144
6
Senary
2024232103
8
Octal
117636707
10
Decimal
20921799
12
Duodecimal
700b633
16
Hexadecimal
13f3dc7
20
Vigesimal
6af49j
36
Base36
cgfd3
md5
059109c3aaf06a584f1fee108cae9048
sha1
2ee4e5ec539e2e34fec7538bbdb3468730a66ec9
sha256
dd1a1604ed27f48c490853d6c60a078e35e88762c42f37b1067db1d955bf913d
sha512
0c809db14f7c7db69c1f8b015276bf1f2c12995c5c4abb2dd571d1be2d2a4ceeede1381e419372c93e5911ab921df5021e13375048bb4df220bd7a9f9a6ec325
ripemd-160
0f1bf356de20dae96ff5c66ebdb1340c587cf267
Diameter
41843598
Circumference
131455540.07656
Area
1.3751431934592E+15
Volume
3.8360625986361E+22
Surface area
5.5005727738367E+15
Circumference
131455540.07656
Perimeter
83687196
Area
437721673396401
Diagonal
29587891.895044
Surface area
2626330040378406
Volume
9.1579248687431E+21
Space diagonal
36237618.853744
Perimeter
62765397
Area
1.8953904447416E+14
Altitude
18118809.426872
Surface area
1.8953904447416E+14
Volume
1.0792717960475E+21
Height
9862630.6316813