20071221 is an odd 8-digits composite number following 20071220
and preceding 20071222 . In scientific notation, it is written as 2.0071221 × 10^7.
The sum of its digits is 15. It has a total of 3 prime factors and 8 positive divisors.
There are 13356240 positive integers (up to 20071221) that are relatively prime to 20071221.
20071221 has 8 divisors, whose sum is 26810784
The reverse of 20071221 is 12217002
Previous prime number is 571
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 15
Digital Root 6
Name
twenty million seventy-one thousand two hundred twenty-one
Scientific notation
2.0071221 × 10^7
Engineering notation
2.0071221 × 10^6
Prime Factorization
3 × 571 × 11717
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20071221
Product of the distinct prime numbers
The prime factorization of 20071221 is 3 × 571 × 11717.
Since it has a total of 3 prime factors.
10 , 8 , 85 , 24 , 827 , 22 , 7502 , 8950 , 48730 , 25044 , 131543 , 263729 , 1995569 , 9771140 , 19308789 , 57246319 , 849277454 , 230753904 , 6895796325 , 3491695415
n×2
40142442
n×3
60213663
n×4
80284884
n×5
100356105
n÷2
10035610.5
n÷3
6690407
n÷3
5017805.25
n÷5
4014244.2
n2
402853912430841
n3
8.0857699071141E+21
n4
1.6229127476084E+29
n5
3.2573840420965E+36
2 √n
4480.0916285273
3 √n
271.7635858457
4 √n
66.933486600709
5 √n
28.87451901455
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
-20071220
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 20071221 can be divided by 8 positive divisors.
The sum of these divisors (counting 20071221) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100100100001100110101
3
Ternary
1101202201112120
4
Quaternary
1030210030311
5
Quinary
20114234341
6
Senary
1554110153
8
Octal
114441465
10
Decimal
20071221
12
Duodecimal
687b359
16
Hexadecimal
1324335
20
Vigesimal
658i11
36
Base36
by71x
md5
51731f034ddcca3cf7db2e033be06aa6
sha1
f4358a7c67ba90f1fd383a670218f1ac6aa4de1f
sha256
d2161ce62e69bc0f54829c52ad0f26e792742edbe8da039a09b9464663a1b02f
sha512
63c4be700653b3b84dc160abed2d3e38b7377072bb7b0febbb16843d1cf53258245e164a121aedeef733490ba8c52f0a47de5c583f92e44993e6cf617bd0a9a1
ripemd-160
b1599800f8870feb7054ab8fdd9bb6025cfd6f84
Diameter
40142442
Circumference
126111200.88435
Area
1.2656028917626E+15
Volume
3.3869593785076E+22
Surface area
5.0624115670505E+15
Circumference
126111200.88435
Perimeter
80284884
Area
402853912430841
Diagonal
28384992.951588
Surface area
2417123474585046
Volume
8.0857699071141E+21
Space diagonal
34764374.541943
Perimeter
60213663
Area
1.7444086108953E+14
Altitude
17382187.270972
Surface area
1.7444086108953E+14
Volume
9.5291712207241E+20
Height
9461664.3171959