20081665 is an odd 8-digits composite number following 20081664
and preceding 20081666 . In scientific notation, it is written as 2.0081665 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 16007040 positive integers (up to 20081665) that are relatively prime to 20081665.
20081665 has 8 divisors, whose sum is 24185448
The reverse of 20081665 is 56618002
Previous prime number is 281
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty million eighty-one thousand six hundred sixty-five
Scientific notation
2.0081665 × 10^7
Engineering notation
2.0081665 × 10^6
Prime Factorization
5 × 281 × 14293
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20081665
Product of the distinct prime numbers
The prime factorization of 20081665 is 5 × 281 × 14293.
Since it has a total of 3 prime factors.
6 , 4 , 97 , 54 , 52 , 297 , 7212 , 7923 , 10937 , 78620 , 810206 , 913671 , 3765232 , 2697339 , 88209006 , 39616994 , 533144754 , 790367009 , 1635148568 , 2990323932
n×2
40163330
n×3
60244995
n×4
80326660
n×5
100408325
n÷2
10040832.5
n÷3
6693888.3333333
n÷3
5020416.25
n÷5
4016333
n2
403273269172225
n3
8.0983986949714E+21
n4
1.6262932962885E+29
n5
3.2658677167812E+36
2 √n
4481.2570780976
3 √n
271.81071479603
4 √n
66.942192062238
5 √n
28.877523343272
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
-20081664
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 20081665 can be divided by 8 positive divisors.
The sum of these divisors (counting 20081665) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100100110110000000001
3
Ternary
1101210020212101
4
Quaternary
1030212300001
5
Quinary
20120103130
6
Senary
1554230401
8
Octal
114466001
10
Decimal
20081665
12
Duodecimal
6885401
16
Hexadecimal
1326c01
20
Vigesimal
65a435
36
Base36
byf41
md5
b054044fbaf8f878920b9a78aead0df2
sha1
69be831ddc64c8bbe911661b97f9efb293bb0a88
sha256
f217733fa67f172f68354ae1fd8f56aa48228602967dc8444bbb357dec6dd460
sha512
87f98029c9eecbc114621417b574a2d687d0205abebbebe86b750d588c1075b1df49c0eda1f9b886a3454ca71c7ef50f30c157bd42f2e3893f332f6068f320bf
ripemd-160
f35ccf93e501a8becfe35935fc0ef41b7335a22d
Diameter
40163330
Circumference
126176822.4717
Area
1.2669203398206E+15
Volume
3.3922493127951E+22
Surface area
5.0676813592824E+15
Circumference
126176822.4717
Perimeter
80326660
Area
403273269172225
Diagonal
28399762.998033
Surface area
2419639615033350
Volume
8.0983986949714E+21
Space diagonal
34782464.080578
Perimeter
60244995
Area
1.7462244788517E+14
Altitude
17391232.040289
Surface area
1.7462244788517E+14
Volume
9.5440543899443E+20
Height
9466587.666011