20181380 is an even 8-digits composite number following 20181379
and preceding 20181381 . In scientific notation, it is written as 2.0181380 × 10^7.
The sum of its digits is 23. It has a total of 5 prime factors and 24 positive divisors.
There are 7597568 positive integers (up to 20181380) that are relatively prime to 20181380.
20181380 has 24 divisors, whose sum is 44874648
The reverse of 20181380 is 08318102
Previous prime number is 17
Is Prime? no
Number parity even
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million one hundred eighty-one thousand three hundred eighty
Scientific notation
2.0181380 × 10^7
Engineering notation
2.0181380 × 10^6
Prime Factorization
2 × 2 × 5 × 17 × 59357
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
10090690
Product of the distinct prime numbers
The prime factorization of 20181380 is 2 × 2 × 5 × 17 × 59357.
Since it has a total of 5 prime factors.
9 , 10 , 58 , 89 , 39 , 923 , 6659 , 4449 , 53924 , 70311 , 939935 , 629634 , 3854326 , 5768524 , 95161989 , 75645764 , 63660691 , 856192763 , 4544316739 , 9603911231
n×2
40362760
n×3
60544140
n×4
80725520
n×5
100906900
n÷2
10090690
n÷3
6727126.6666667
n÷3
5045345
n÷5
4036276
n2
407288098704400
n3
8.219635889431E+21
n4
1.6588359534625E+29
n5
3.3477598734488E+36
2 √n
4492.3690854604
3 √n
272.25986194949
4 √n
67.025137713103
5 √n
28.906144674646
1 , 2 , 4 , 5 , 10 , 17 , 20 , 34 , 68 , 85 , 170 , 340 , 59357 , 118714 , 237428 , 296785 , 593570 , 1009069 , 1187140 , 2018138 , 4036276 , 5045345 , 10090690 , 20181380
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20181379
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20181380 can be divided by 24 positive divisors.
The sum of these divisors (counting 20181380) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1001100111111000110000100
3
Ternary
1101222022122112
4
Quaternary
1030333012010
5
Quinary
20131301010
6
Senary
2000320152
8
Octal
114770604
10
Decimal
20181380
12
Duodecimal
6913058
16
Hexadecimal
133f184
20
Vigesimal
662d90
36
Base36
c0k1w
md5
ab2e507dee733a099cdca91bfffe91cb
sha1
03c94a5457df1317a3087c2bed54191a888891e1
sha256
822300623cf330359266da2ad2b2a2ffe1fa4d6e52bdb291a0618c0302b54bb7
sha512
b8679ace6fb62e4fd5b7cc8dff0f76b00a39ad8be2326b6779d02509913a4e6b5a86abb83f96a7f1bef52d773b5e51367a63fe277b36532dec8f9d8e6d2678f0
ripemd-160
0fa17888d3f48a01f508d7ef60f54b026651b70e
Diameter
40362760
Circumference
126803350.29461
Area
1.2795332987843E+15
Volume
3.4430330300559E+22
Surface area
5.1181331951372E+15
Circumference
126803350.29461
Perimeter
80725520
Area
407288098704400
Diagonal
28540781.303405
Surface area
2443728592226400
Volume
8.219635889431E+21
Space diagonal
34955175.526854
Perimeter
60544140
Area
1.7636092006854E+14
Altitude
17477587.763427
Surface area
1.7636092006854E+14
Volume
9.686933793835E+20
Height
9513593.7678017