20181378 is an even 8-digits composite number following 20181377
and preceding 20181379 . In scientific notation, it is written as 2.0181378 × 10^7.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 5766096 positive integers (up to 20181378) that are relatively prime to 20181378.
20181378 has 16 divisors, whose sum is 46128960
The reverse of 20181378 is 87318102
Previous prime number is 7
Is Prime? no
Number parity even
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million one hundred eighty-one thousand three hundred seventy-eight
Scientific notation
2.0181378 × 10^7
Engineering notation
2.0181378 × 10^6
Prime Factorization
2 × 3 × 7 × 480509
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20181378
Product of the distinct prime numbers
The prime factorization of 20181378 is 2 × 3 × 7 × 480509.
Since it has a total of 4 prime factors.
10 , 6 , 47 , 2 , 118 , 254 , 8537 , 2830 , 46864 , 97675 , 280929 , 906820 , 4130650 , 3097131 , 62158594 , 27192771 , 914846596 , 292674691 , 7359480854 , 9829204055
n×2
40362756
n×3
60544134
n×4
80725512
n×5
100906890
n÷2
10090689
n÷3
6727126
n÷3
5045344.5
n÷5
4036275.6
n2
407288017978884
n3
8.2196334457027E+21
n4
1.6588352958917E+29
n5
3.3477582146132E+36
2 √n
4492.3688628607
3 √n
272.25985295573
4 √n
67.025136052534
5 √n
28.906144101719
1 , 2 , 3 , 6 , 7 , 14 , 21 , 42 , 480509 , 961018 , 1441527 , 2883054 , 3363563 , 6727126 , 10090689 , 20181378
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20181377
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20181378 can be divided by 16 positive divisors.
The sum of these divisors (counting 20181378) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001100111111000110000010
3
Ternary
1101222022122110
4
Quaternary
1030333012002
5
Quinary
20131301003
6
Senary
2000320150
8
Octal
114770602
10
Decimal
20181378
12
Duodecimal
6913056
16
Hexadecimal
133f182
20
Vigesimal
662d8i
36
Base36
c0k1u
md5
88095f61db57e3cdc625c3ffe2e25e2c
sha1
8bcdcc71bfb10e39778b3500d46f5983a706497c
sha256
8847e9a9580a4e97ead4bcfed3789ad64a14bc332cb57e36630d367a9cee2792
sha512
33e45f1461801603f2779f67513199de730e94e7ac4c96cab03463b7658112ce498d26f18cefe12a0c255309a33fcd6f09ce47a2e5865f2949a563b54d16e9df
ripemd-160
ae3421fbeadaa6226870f6580f26ed323fa849e1
Diameter
40362756
Circumference
126803337.72824
Area
1.2795330451776E+15
Volume
3.4430320064294E+22
Surface area
5.1181321807104E+15
Circumference
126803337.72824
Perimeter
80725512
Area
407288017978884
Diagonal
28540778.474978
Surface area
2443728107873304
Volume
8.2196334457027E+21
Space diagonal
34955172.062753
Perimeter
60544134
Area
1.7636088511336E+14
Altitude
17477586.031376
Surface area
1.7636088511336E+14
Volume
9.6869309138735E+20
Height
9513592.8249927