20170820 is an even 8-digits composite number following 20170819
and preceding 20170821 . In scientific notation, it is written as 2.0170820 × 10^7.
The sum of its digits is 20. It has a total of 4 prime factors and 12 positive divisors.
There are 8068320 positive integers (up to 20170820) that are relatively prime to 20170820.
20170820 has 12 divisors, whose sum is 42358764
The reverse of 20170820 is 02807102
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty million one hundred seventy thousand eight hundred twenty
Scientific notation
2.0170820 × 10^7
Engineering notation
2.0170820 × 10^6
Prime Factorization
2 × 2 × 5 × 1008541
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10085410
Product of the distinct prime numbers
The prime factorization of 20170820 is 2 × 2 × 5 × 1008541.
Since it has a total of 4 prime factors.
8 , 5 , 29 , 2 , 372 , 630 , 6013 , 4821 , 14433 , 37937 , 9174 , 740413 , 8085364 , 2992846 , 37564099 , 94775261 , 360854137 , 753358119 , 4422092806 , 4770723746
n×2
40341640
n×3
60512460
n×4
80683280
n×5
100854100
n÷2
10085410
n÷3
6723606.6666667
n÷3
5042705
n÷5
4034164
n2
406861979472400
n3
8.2067397527815E+21
n4
1.655366703402E+29
n5
3.3390103808315E+36
2 √n
4491.193605268
3 √n
272.21236658906
4 √n
67.016368189182
5 √n
28.903118986641
1 , 2 , 4 , 5 , 10 , 20 , 1008541 , 2017082 , 4034164 , 5042705 , 10085410 , 20170820
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20170819
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20170820 can be divided by 12 positive divisors.
The sum of these divisors (counting 20170820) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001100111100100001000100
3
Ternary
1101221210011102
4
Quaternary
1030330201010
5
Quinary
20130431240
6
Senary
2000155232
8
Octal
114744104
10
Decimal
20170820
12
Duodecimal
6908b18
16
Hexadecimal
133c844
20
Vigesimal
661710
36
Base36
c0bwk
md5
9f451e8e31b9acadc8a5554bd2c280f7
sha1
ff5f75c984616d82586e14c3024d1487e8c1e987
sha256
59806dfa8ade4c94ce573f5b57e54a87182644010a6e988d7fa0a7a7b40112bf
sha512
98123416e2a521c6826565a21c4af5a5899fedf86437b57585049ff87fa7eba2ba9b6ed63745b5d714756010f6813821f26531bb709cb8575d6b307620b80997
ripemd-160
f65e1509ad2432a486e2027825fa8c0c354a3642
Diameter
40341640
Circumference
126736999.85776
Area
1.2781946057355E+15
Volume
3.4376311089682E+22
Surface area
5.112778422942E+15
Circumference
126736999.85776
Perimeter
80683280
Area
406861979472400
Diagonal
28525847.208186
Surface area
2441171876834400
Volume
8.2067397527815E+21
Space diagonal
34936885.070326
Perimeter
60512460
Area
1.7617640502856E+14
Altitude
17468442.535163
Surface area
1.7617640502856E+14
Volume
9.6717355510417E+20
Height
9508615.7360622