20381618 is an even 8-digits composite number following 20381617
and preceding 20381619 . In scientific notation, it is written as 2.0381618 × 10^7.
The sum of its digits is 29. It has a total of 2 prime factors and 4 positive divisors.
There are 10190808 positive integers (up to 20381618) that are relatively prime to 20381618.
20381618 has 4 divisors, whose sum is 30572430
The reverse of 20381618 is 81618302
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million three hundred eighty-one thousand six hundred eighteen
Scientific notation
2.0381618 × 10^7
Engineering notation
2.0381618 × 10^6
Prime Factorization
2 × 10190809
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20381618
Product of the distinct prime numbers
The prime factorization of 20381618 is 2 × 10190809.
Since it has a total of 2 prime factors.
10 , 3 , 10 , 78 , 781 , 13 , 3481 , 7689 , 9400 , 40596 , 383695 , 909098 , 3205950 , 5808358 , 42071978 , 42929717 , 838854290 , 914384205 , 5903464046 , 6952514857
n×2
40763236
n×3
61144854
n×4
81526472
n×5
101908090
n÷2
10190809
n÷3
6793872.6666667
n÷3
5095404.5
n÷5
4076323.6
n2
415410352297924
n3
8.4667351137817E+21
n4
1.7256576079629E+29
n5
3.5171694164293E+36
2 √n
4514.6005360386
3 √n
273.15734689077
4 √n
67.190777165014
5 √n
28.96327924872
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
-20381617
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 20381618 can be divided by 4 positive divisors.
The sum of these divisors (counting 20381618) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101101111111110110010
3
Ternary
1102100111022202
4
Quaternary
1031233332302
5
Quinary
20204202433
6
Senary
2004503202
8
Octal
115577662
10
Decimal
20381618
12
Duodecimal
69aab02
16
Hexadecimal
136ffb2
20
Vigesimal
677e0i
36
Base36
c4uk2
md5
01d3d51f98cdaeb265fb023af53c2e84
sha1
b41a165388588ef9060682867761f607173ea024
sha256
92238e71999f3a8b8634f27558c67bdb966cf631f23f1cb7ebaa829eed611c85
sha512
0498bcea806ec180de4f7c91b2df3ec46e7298b4dfa2e643d2e7cbebd40b30de297b2c1c247133be27c2ad129a4ff1a598535a554b2f96746a7eb993d994a95a
ripemd-160
00c4274d1dc5bbf775a18922ff5028e17b4023ce
Diameter
40763236
Circumference
128061482.75415
Area
1.3050501110043E+15
Volume
3.546537711113E+22
Surface area
5.2202004440172E+15
Circumference
128061482.75415
Perimeter
81526472
Area
415410352297924
Diagonal
28823960.598708
Surface area
2492462113787544
Volume
8.4667351137817E+21
Space diagonal
35301997.91646
Perimeter
61144854
Area
1.7987795904252E+14
Altitude
17650998.95823
Surface area
1.7987795904252E+14
Volume
9.9781430224422E+20
Height
9607986.8662359