81707045 is an odd 8-digits composite number following 81707044
and preceding 81707046 . In scientific notation, it is written as 8.1707045 × 10^7.
The sum of its digits is 32. It has a total of 4 prime factors and 16 positive divisors.
There are 55866240 positive integers (up to 81707045) that are relatively prime to 81707045.
81707045 has 16 divisors, whose sum is 112378368
The reverse of 81707045 is 54070718
Previous prime number is 367
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
eighty-one million seven hundred seven thousand forty-five
Scientific notation
8.1707045 × 10^7
Engineering notation
8.1707045 × 10^6
Prime Factorization
7 × 5 × 367 × 6361
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81707045
Product of the distinct prime numbers
The prime factorization of 81707045 is 7 × 5 × 367 × 6361.
Since it has a total of 4 prime factors.
1 , 9 , 27 , 64 , 588 , 588 , 1569 , 8074 , 34071 , 33927 , 554884 , 692783 , 4247016 , 2606796 , 7640709 , 30466696 , 970510728 , 898905010 , 3485038117 , 6099631334
n×2
163414090
n×3
245121135
n×4
326828180
n×5
408535225
n÷2
40853522.5
n÷3
27235681.666667
n÷3
20426761.25
n÷5
16341409
n2
6676041202632025
n3
5.4547959896531E+23
n4
4.456952613924E+31
n5
3.6416442778876E+39
2 √n
9039.1949309659
3 √n
433.93015822759
4 √n
95.074680809172
5 √n
38.234190602231
1 , 5 , 7 , 35 , 367 , 1835 , 2569 , 6361 , 12845 , 31805 , 44527 , 222635 , 2334487 , 11672435 , 16341409 , 81707045
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
-81707044
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 81707045 can be divided by 16 positive divisors.
The sum of these divisors (counting 81707045) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110111101100000000100101
3
Ternary
12200202010222212
4
Quaternary
10313230000211
5
Quinary
131404111140
6
Senary
12035133205
8
Octal
467540045
10
Decimal
81707045
12
Duodecimal
23444205
16
Hexadecimal
4dec025
20
Vigesimal
15ad7c5
36
Base36
1cn9k5
md5
dec6c33b22f69cb6fbec3a6d88260a94
sha1
ee4edddb8dfb4854c66dac46ddcc3d9e7fc0b445
sha256
c57b84f687005e2254c73ba6f44b060a7acf89ba33c07c23dd1acd47d0bb5f3b
sha512
77c1924861ca813c3769e0931521a17f0e62c1dd0ec68541bb9855e7412ca06276cff331141fb2d842d084161fd585ca1d9833415c13b5de5b3e817a71d69090
ripemd-160
80e06ca418b1f311feddf33863b0d4a820890f4a
Diameter
163414090
Circumference
513380504.63706
Area
2.0973401997252E+16
Volume
2.2848996010567E+24
Surface area
8.3893607989006E+16
Circumference
513380504.63706
Perimeter
326828180
Area
6676041202632025
Diagonal
115551211.18043
Surface area
40056247215792150
Volume
5.4547959896531E+23
Space diagonal
141520753.27632
Perimeter
245121135
Area
2.8908106390955E+15
Altitude
70760376.638158
Surface area
2.8908106390955E+15
Volume
6.4285387237881E+22
Height
38517070.393476