81000766 is an even 8-digits composite number following 81000765
and preceding 81000767 . In scientific notation, it is written as 8.1000766 × 10^7.
The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors.
There are 31558680 positive integers (up to 81000766) that are relatively prime to 81000766.
81000766 has 16 divisors, whose sum is 151482240
The reverse of 81000766 is 66700018
Previous prime number is 11
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
eighty-one million seven hundred sixty-six
Scientific notation
8.1000766 × 10^7
Engineering notation
8.1000766 × 10^6
Prime Factorization
2 × 7 × 11 × 525979
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
81000766
Product of the distinct prime numbers
The prime factorization of 81000766 is 2 × 7 × 11 × 525979.
Since it has a total of 4 prime factors.
9 , 9 , 47 , 17 , 661 , 571 , 2042 , 7490 , 64305 , 6487 , 651519 , 95437 , 2217617 , 4472237 , 4727181 , 10918589 , 616507812 , 210654493 , 2476937122 , 1029013029
n×2
162001532
n×3
243002298
n×4
324003064
n×5
405003830
n÷2
40500383
n÷3
27000255.333333
n÷3
20250191.5
n÷5
16200153.2
n2
6561124092586756
n3
5.3145607732058E+23
n4
4.3048349358322E+31
n5
3.4869492730597E+39
2 √n
9000.0425554549
3 √n
432.67623499307
4 √n
94.868554091727
5 √n
38.167861284863
1 , 2 , 7 , 11 , 14 , 22 , 77 , 154 , 525979 , 1051958 , 3681853 , 5785769 , 7363706 , 11571538 , 40500383 , 81000766
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
-81000765
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 81000766 can be divided by 16 positive divisors.
The sum of these divisors (counting 81000766) is 1, the average is 0.0625.
Base
System
Value
2
Binary
100110100111111100100111110
3
Ternary
12122102021011101
4
Quaternary
10310333210332
5
Quinary
131214011031
6
Senary
12012043314
8
Octal
464774476
10
Decimal
81000766
12
Duodecimal
2316353a
16
Hexadecimal
4d3f93e
20
Vigesimal
15651i6
36
Base36
1c84la
md5
7e27483d5f0254c5d6914bf3b0c0ba44
sha1
0ec4ba4745beac25c6ef7feb300da1ab3b8a7fb8
sha256
66dc4b3e17ff069b2c48481f2accf3f6d9132f70197273d85a93ce830db02c1a
sha512
d4643deb42ab94a53696f3d2baa958390ba3f58fa80d5765a4cc3ac74585d39b79700ed7876b77765e940a8c62f33477b3d31e13ba7650ddfe767a07f4112d56
ripemd-160
48fc9c2780cc21967f581bece5a40204352fb146
Diameter
162001532
Circumference
508942822.80149
Area
2.0612379248562E+16
Volume
2.2261580109547E+24
Surface area
8.2449516994246E+16
Circumference
508942822.80149
Perimeter
324003064
Area
6561124092586756
Diagonal
114552381.83981
Surface area
39366744555520536
Volume
5.3145607732058E+23
Space diagonal
140297442.164
Perimeter
243002298
Area
2.8410500707811E+15
Altitude
70148721.081999
Surface area
2.8410500707811E+15
Volume
6.2632699362698E+22
Height
38184127.279936