20081405 is an odd 8-digits composite number following 20081404
and preceding 20081406 . In scientific notation, it is written as 2.0081405 × 10^7.
The sum of its digits is 20. It has a total of 3 prime factors and 8 positive divisors.
There are 15861456 positive integers (up to 20081405) that are relatively prime to 20081405.
20081405 has 8 divisors, whose sum is 24403200
The reverse of 20081405 is 50418002
Previous prime number is 79
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty million eighty-one thousand four hundred five
Scientific notation
2.0081405 × 10^7
Engineering notation
2.0081405 × 10^6
Prime Factorization
5 × 79 × 50839
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20081405
Product of the distinct prime numbers
The prime factorization of 20081405 is 5 × 79 × 50839.
Since it has a total of 3 prime factors.
5 , 9 , 45 , 28 , 628 , 845 , 9914 , 3377 , 59849 , 33742 , 640013 , 695128 , 4374593 , 2526746 , 66877491 , 12613859 , 683166567 , 780003525 , 5347026710 , 2677153168
n×2
40162810
n×3
60244215
n×4
80325620
n×5
100407025
n÷2
10040702.5
n÷3
6693801.6666667
n÷3
5020351.25
n÷5
4016281
n2
403262826774025
n3
8.098084145894E+21
n4
1.6262090745778E+29
n5
3.2656563041271E+36
2 √n
4481.2280682866
3 √n
271.80954173442
4 √n
66.94197538381
5 √n
28.877448566654
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20081404
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20081405 can be divided by 8 positive divisors.
The sum of these divisors (counting 20081405) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100100110101011111101
3
Ternary
1101210020111202
4
Quaternary
1030212223331
5
Quinary
20120101110
6
Senary
1554225245
8
Octal
114465375
10
Decimal
20081405
12
Duodecimal
6885225
16
Hexadecimal
1326afd
20
Vigesimal
65a3a5
36
Base36
byewt
md5
da0572b1694538b83f9bab6c6006bda6
sha1
99c4ec40d5f388acb263208c6e0e06d61c1674d0
sha256
5dca3f53ab8889b22e7a65ed2f5276c65d33a200e7a4ed2dfe1e7065822fd58b
sha512
db34673212db5c2e0429e47932aa5d1971a222ac560d48eaed4db00969221f4aae69c85acb01b16c88e2108ccbabd0c68f3fd7de0ff93f9f2f8e1b0f41c62378
ripemd-160
4b36275e747f21fed882c7f4c062e379283723b5
Diameter
40162810
Circumference
126175188.84352
Area
1.2668875340591E+15
Volume
3.3921175547857E+22
Surface area
5.0675501362365E+15
Circumference
126175188.84352
Perimeter
80325620
Area
403262826774025
Diagonal
28399395.302507
Surface area
2419576960644150
Volume
8.098084145894E+21
Space diagonal
34782013.747368
Perimeter
60244215
Area
1.7461792619411E+14
Altitude
17391006.873684
Surface area
1.7461792619411E+14
Volume
9.5436836903016E+20
Height
9466465.1008356