20187221 is an odd 8-digits composite number following 20187220
and preceding 20187222 . In scientific notation, it is written as 2.0187221 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 20082432 positive integers (up to 20187221) that are relatively prime to 20187221.
20187221 has 4 divisors, whose sum is 20292012
The reverse of 20187221 is 12278102
Previous prime number is 193
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million one hundred eighty-seven thousand two hundred twenty-one
Scientific notation
2.0187221 × 10^7
Engineering notation
2.0187221 × 10^6
Prime Factorization
193 × 104597
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20187221
Product of the distinct prime numbers
The prime factorization of 20187221 is 193 × 104597.
Since it has a total of 2 prime factors.
5 , 4 , 13 , 16 , 756 , 352 , 2573 , 1715 , 68834 , 1611 , 492868 , 475274 , 3404523 , 3210767 , 798103 , 40800251 , 287992304 , 702865030 , 9257381869 , 316421083
n×2
40374442
n×3
60561663
n×4
80748884
n×5
100936105
n÷2
10093610.5
n÷3
6729073.6666667
n÷3
5046805.25
n÷5
4037444.2
n2
407523891702841
n3
8.2267748645853E+21
n4
1.6607572230863E+29
n5
3.3526073089789E+36
2 √n
4493.0191408451
3 √n
272.28612570445
4 √n
67.029986877852
5 √n
28.907817714327
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
-20187220
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 20187221 can be divided by 4 positive divisors.
The sum of these divisors (counting 20187221) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101000000100001010101
3
Ternary
1101222121122212
4
Quaternary
1031000201111
5
Quinary
20131442341
6
Senary
2000403205
8
Octal
115004125
10
Decimal
20187221
12
Duodecimal
6916505
16
Hexadecimal
1340855
20
Vigesimal
663811
36
Base36
c0ok5
md5
884d321e1b638b38b7841d8920b8fb9a
sha1
655dbefcfcbb1e8680c4de97d111ba9a6c0aa413
sha256
30e8828ba5aeade46f1f06e94a112db86ae6e7e310547ecce55fb87e27a221ea
sha512
f57caad6ec6ebecb4909cab9b73bc77da6e562b89d5ba1065f3d43445b83110a63dcc648f35752eacb5873434a8b60e52b4fdcd18325210a871faf938e1a4c5a
ripemd-160
373b031450b1aa743d53fe49d40aae098e06fda9
Diameter
40374442
Circumference
126840050.37999
Area
1.280274064336E+15
Volume
3.4460233969758E+22
Surface area
5.1210962573439E+15
Circumference
126840050.37999
Perimeter
80748884
Area
407523891702841
Diagonal
28549041.724823
Surface area
2445143350217046
Volume
8.2267748645853E+21
Space diagonal
34965292.435621
Perimeter
60561663
Area
1.7646302143188E+14
Altitude
17482646.217811
Surface area
1.7646302143188E+14
Volume
9.6953471567389E+20
Height
9516347.2416077