20081921 is an odd 8-digits composite number following 20081920
and preceding 20081922 . In scientific notation, it is written as 2.0081921 × 10^7.
The sum of its digits is 23. It has a total of 3 prime factors and 8 positive divisors.
There are 19166400 positive integers (up to 20081921) that are relatively prime to 20081921.
20081921 has 8 divisors, whose sum is 21001344
The reverse of 20081921 is 12918002
Previous prime number is 1201
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million eighty-one thousand nine hundred twenty-one
Scientific notation
2.0081921 × 10^7
Engineering notation
2.0081921 × 10^6
Prime Factorization
23 × 1201 × 727
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20081921
Product of the distinct prime numbers
The prime factorization of 20081921 is 23 × 1201 × 727.
Since it has a total of 3 prime factors.
3 , 9 , 29 , 100 , 485 , 596 , 204 , 1750 , 48392 , 85036 , 667877 , 46678 , 168520 , 6720585 , 76855229 , 56060752 , 193891829 , 17085154 , 4139579777 , 9005776551
n×2
40163842
n×3
60245763
n×4
80327684
n×5
100409605
n÷2
10040960.5
n÷3
6693973.6666667
n÷3
5020480.25
n÷5
4016384.2
n2
403283551050241
n3
8.0987084127904E+21
n4
1.6263762254769E+29
n5
3.2660758876306E+36
2 √n
4481.2856414203
3 √n
271.81186980065
4 √n
66.942405405097
5 √n
28.877596968724
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
-20081920
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 20081921 can be divided by 8 positive divisors.
The sum of these divisors (counting 20081921) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100100110110100000001
3
Ternary
1101210021012212
4
Quaternary
1030212310001
5
Quinary
20120110141
6
Senary
1554231505
8
Octal
114466401
10
Decimal
20081921
12
Duodecimal
6885595
16
Hexadecimal
1326d01
20
Vigesimal
65a4g1
36
Base36
byfb5
md5
28d37892547936b73f4c2e9794f11b12
sha1
6a7a76d74072e09551ff32f00a02753904ef03da
sha256
8ae8a3c303664dfd445230beed593cac8b0e1dcd8f07e268e4571e3a13b6a45a
sha512
3b2432d5f989607176d36cdda693d08a4ddc89f5584a9387fc8ee12ebfd1cf354d24178af392db31e44b973a0181838b61eea4df17117d0cb0172bf1c5fc74be
ripemd-160
517e88dca7dea579e8f4958a25e7e0dcdeac8292
Diameter
40163842
Circumference
126178430.96714
Area
1.266952641293E+15
Volume
3.3923790470918E+22
Surface area
5.0678105651722E+15
Circumference
126178430.96714
Perimeter
80327684
Area
403283551050241
Diagonal
28400125.036705
Surface area
2419701306301446
Volume
8.0987084127904E+21
Space diagonal
34782907.485584
Perimeter
60245763
Area
1.7462690006895E+14
Altitude
17391453.742792
Surface area
1.7462690006895E+14
Volume
9.5444193958944E+20
Height
9466708.3455684