20181320 is an even 8-digits composite number following 20181319
and preceding 20181321 . In scientific notation, it is written as 2.0181320 × 10^7.
The sum of its digits is 17. It has a total of 6 prime factors and 32 positive divisors.
There are 8045568 positive integers (up to 20181320) that are relatively prime to 20181320.
20181320 has 32 divisors, whose sum is 45559800
The reverse of 20181320 is 02318102
Previous prime number is 389
Is Prime? no
Number parity even
Number length 8
Sum of Digits 17
Digital Root 8
Name
twenty million one hundred eighty-one thousand three hundred twenty
Scientific notation
2.0181320 × 10^7
Engineering notation
2.0181320 × 10^6
Prime Factorization
2 × 2 × 2 × 5 × 389 × 1297
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
5045330
Product of the distinct prime numbers
The prime factorization of 20181320 is 2 × 2 × 2 × 5 × 389 × 1297.
Since it has a total of 6 prime factors.
2 , 8 , 51 , 65 , 548 , 182 , 1440 , 7397 , 24235 , 16050 , 665874 , 192441 , 9128746 , 2545825 , 47850087 , 6852006 , 942181987 , 237652289 , 3764243057 , 4126012727
n×2
40362640
n×3
60543960
n×4
80725280
n×5
100906600
n÷2
10090660
n÷3
6727106.6666667
n÷3
5045330
n÷5
4036264
n2
407285676942400
n3
8.2195625777912E+21
n4
1.6588162264243E+29
n5
3.3477101086661E+36
2 √n
4492.3624074645
3 √n
272.2595921363
4 √n
67.025087895985
5 √n
28.906127486815
1 , 2 , 4 , 5 , 8 , 10 , 20 , 40 , 389 , 778 , 1297 , 1556 , 1945 , 2594 , 3112 , 3890 , 5188 , 6485 , 7780 , 10376 , 12970 , 15560 , 25940 , 51880 , 504533 , 1009066 , 2018132 , 2522665 , 4036264 , 5045330 , 10090660 , 20181320
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20181319
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20181320 can be divided by 32 positive divisors.
The sum of these divisors (counting 20181320) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001100111111000101001000
3
Ternary
1101222022120022
4
Quaternary
1030333011020
5
Quinary
20131300240
6
Senary
2000320012
8
Octal
114770510
10
Decimal
20181320
12
Duodecimal
6913008
16
Hexadecimal
133f148
20
Vigesimal
662d60
36
Base36
c0k08
md5
ed12069660271491c09dce87efc4744a
sha1
bbce2ae7fc1d47bfcf8aeca4ab6991cb0ef6641f
sha256
f9727f4a0c0f5e15ddc37c791f2e869154dd3550bd7ce028fe404c2a724b75e1
sha512
a53e1f468fca91f143df2575ed6da71b1712c32f8ed9053ec0f2beafb63de9cec581bb2890dc38c1b0c3d3616eb41560dcb0f63d740933999d7d881e4d7a97a9
ripemd-160
614f78aca0114a197e6e06195def9b4a9e45be5a
Diameter
40362640
Circumference
126802973.30349
Area
1.2795256905946E+15
Volume
3.4430023213481E+22
Surface area
5.1181027623784E+15
Circumference
126802973.30349
Perimeter
80725280
Area
407285676942400
Diagonal
28540696.450591
Surface area
2443714061654400
Volume
8.2195625777912E+21
Space diagonal
34955071.603806
Perimeter
60543960
Area
1.7635987141483E+14
Altitude
17477535.801903
Surface area
1.7635987141483E+14
Volume
9.6868473952389E+20
Height
9513565.4835305