20101921 is an odd 8-digits composite number following 20101920
and preceding 20101922 . In scientific notation, it is written as 2.0101921 × 10^7.
The sum of its digits is 16. It has a total of 3 prime factors and 8 positive divisors.
There are 17173968 positive integers (up to 20101921) that are relatively prime to 20101921.
20101921 has 8 divisors, whose sum is 23048640
The reverse of 20101921 is 12910102
Previous prime number is 317
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 16
Digital Root 7
Name
twenty million one hundred one thousand nine hundred twenty-one
Scientific notation
2.0101921 × 10^7
Engineering notation
2.0101921 × 10^6
Prime Factorization
7 × 317 × 9059
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20101921
Product of the distinct prime numbers
The prime factorization of 20101921 is 7 × 317 × 9059.
Since it has a total of 3 prime factors.
6 , 8 , 94 , 19 , 794 , 317 , 2067 , 9253 , 48596 , 49941 , 78931 , 455889 , 2334448 , 8964014 , 72143228 , 46303910 , 956882148 , 411848656 , 7485423655 , 7290969800
n×2
40203842
n×3
60305763
n×4
80407684
n×5
100509605
n÷2
10050960.5
n÷3
6700640.3333333
n÷3
5025480.25
n÷5
4020384.2
n2
404087227890241
n3
8.1229295321586E+21
n4
1.6328648774402E+29
n5
3.2823720769977E+36
2 √n
4483.516588572
3 √n
271.90207421397
4 √n
66.959066515088
5 √n
28.883346637776
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20101920
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20101921 can be divided by 8 positive divisors.
The sum of these divisors (counting 20101921) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100101011101100100001
3
Ternary
1101211021122121
4
Quaternary
1030223230201
5
Quinary
20121230141
6
Senary
1554504241
8
Octal
114535441
10
Decimal
20101921
12
Duodecimal
6895081
16
Hexadecimal
132bb21
20
Vigesimal
65ceg1
36
Base36
byuqp
md5
8070ccf2ee15bdec39fa9ba51b285599
sha1
10939895787fe457d43140ce546bd8e6a4351d1e
sha256
2d754ad447efe86444bb5b7f1e52263bcd2e02235fcb9d7a12c285afbbf90a48
sha512
ca4c6e072b2fc1527df62926360969c58c5aefdc5f4e1865750de72fbf1711dd123f42b616980be34a78ce4fcb2cf64f61d2f1700881279227b976355d50da52
ripemd-160
ed863460878f28487a70a07467ea9c0f95a825d0
Diameter
40203842
Circumference
126304094.67328
Area
1.2694774665494E+15
Volume
3.4025247658476E+22
Surface area
5.0779098661978E+15
Circumference
126304094.67328
Perimeter
80407684
Area
404087227890241
Diagonal
28428409.307953
Surface area
2424523367341446
Volume
8.1229295321586E+21
Space diagonal
34817548.501736
Perimeter
60305763
Area
1.7497490234889E+14
Altitude
17408774.250868
Surface area
1.7497490234889E+14
Volume
9.5729642588164E+20
Height
9476136.4359842