20081440 is an even 8-digits composite number following 20081439
and preceding 20081441 . In scientific notation, it is written as 2.0081440 × 10^7.
The sum of its digits is 19. It has a total of 7 prime factors and 24 positive divisors.
There are 8032512 positive integers (up to 20081440) that are relatively prime to 20081440.
20081440 has 24 divisors, whose sum is 47442780
The reverse of 20081440 is 04418002
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 19
Digital Root 1
Name
twenty million eighty-one thousand four hundred forty
Scientific notation
2.0081440 × 10^7
Engineering notation
2.0081440 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 2 × 5 × 125509
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
7
Total number of prime factors
rad
Radical
1255090
Product of the distinct prime numbers
The prime factorization of 20081440 is 2 × 2 × 2 × 2 × 2 × 5 × 125509.
Since it has a total of 7 prime factors.
9 , 6 , 51 , 72 , 591 , 626 , 4162 , 2699 , 33748 , 32602 , 530059 , 386862 , 3368674 , 9441972 , 11831763 , 90222204 , 384333499 , 604151780 , 4675130673 , 6249374867
n×2
40162880
n×3
60244320
n×4
80325760
n×5
100407200
n÷2
10040720
n÷3
6693813.3333333
n÷3
5020360
n÷5
4016288
n2
403264232473600
n3
8.0981264885646E+21
n4
1.6262204119252E+29
n5
3.2656847628852E+36
2 √n
4481.2319734644
3 √n
271.80969964715
4 √n
66.942004552183
5 √n
28.877458632783
1 , 2 , 4 , 5 , 8 , 10 , 16 , 20 , 32 , 40 , 80 , 160 , 125509 , 251018 , 502036 , 627545 , 1004072 , 1255090 , 2008144 , 2510180 , 4016288 , 5020360 , 10040720 , 20081440
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
-20081439
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 20081440 can be divided by 24 positive divisors.
The sum of these divisors (counting 20081440) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1001100100110101100100000
3
Ternary
1101210020120001
4
Quaternary
1030212230200
5
Quinary
20120101230
6
Senary
1554225344
8
Octal
114465440
10
Decimal
20081440
12
Duodecimal
6885254
16
Hexadecimal
1326b20
20
Vigesimal
65a3c0
36
Base36
byexs
md5
b573b23a23410c98bcd4e90624cf1feb
sha1
605b909b5650ac860af5287e10e62d5613dc1277
sha256
56e5b08cebb0abadcd9f059cba124b4992bf9acc530b185e0ae9200afbeccf06
sha512
3fedd64b39d50217fc0f57a411a1f2955c7e128d1aefb79a2175ed3662a1cb74664c86c5d8653a6573197ef9bbd8bb8037c813a464f9e85ab4b938d928c2f6bc
ripemd-160
60ff61baa0cfef633bfee5146e1611beca39d422
Diameter
40162880
Circumference
126175408.75501
Area
1.2668919501946E+15
Volume
3.3921352912421E+22
Surface area
5.0675678007784E+15
Circumference
126175408.75501
Perimeter
80325760
Area
403264232473600
Diagonal
28399444.799982
Surface area
2419585394841600
Volume
8.0981264885646E+21
Space diagonal
34782074.369146
Perimeter
60244320
Area
1.7461853487989E+14
Altitude
17391037.184573
Surface area
1.7461853487989E+14
Volume
9.5437335916174E+20
Height
9466481.5999939