81076947 is an odd 8-digits composite number following 81076946
and preceding 81076948 . In scientific notation, it is written as 8.1076947 × 10^7.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 46329672 positive integers (up to 81076947) that are relatively prime to 81076947.
81076947 has 8 divisors, whose sum is 123545856
The reverse of 81076947 is 74967018
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
eighty-one million seventy-six thousand nine hundred forty-seven
Scientific notation
8.1076947 × 10^7
Engineering notation
8.1076947 × 10^6
Prime Factorization
3 × 7 × 3860807
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81076947
Product of the distinct prime numbers
The prime factorization of 81076947 is 3 × 7 × 3860807.
Since it has a total of 3 prime factors.
2 , 4 , 27 , 41 , 974 , 833 , 3618 , 1590 , 74077 , 97028 , 210076 , 182432 , 8457075 , 6485037 , 16495943 , 80156565 , 918358599 , 980410569 , 6315158416 , 2617154429
n×2
162153894
n×3
243230841
n×4
324307788
n×5
405384735
n÷2
40538473.5
n÷3
27025649
n÷3
20269236.75
n÷5
16215389.4
n2
6573471334840809
n3
5.3295698702091E+23
n4
4.3210525389974E+31
n5
3.5033774768851E+39
2 √n
9004.2738185819
3 √n
432.81183609833
4 √n
94.89085213329
5 √n
38.175037939456
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
-81076946
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 81076947 can be divided by 8 positive divisors.
The sum of these divisors (counting 81076947) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110101010010001011010011
3
Ternary
12122120010122220
4
Quaternary
10311102023103
5
Quinary
131223430242
6
Senary
12013432123
8
Octal
465221323
10
Decimal
81076947
12
Duodecimal
2319b643
16
Hexadecimal
4d522d3
20
Vigesimal
156ec77
36
Base36
1c9rdf
md5
30b788607013f5715a8045da1b7c1286
sha1
c39cbc35cbdc4ec52788cdac0806e72e11031a4c
sha256
6cc094884de9d5deb2e7368133acda639db3da82c3b3d83850f5d8ec526f8238
sha512
ff69888e84431a1b9f5807bde12d9bb6687276e65bd0b903933964b0a174ba2a62c088dc3e9e5fa95fa2990ff9c9037fdc649a80a53dda45cccc666ca776d38c
ripemd-160
a044cd9282dff1b362514098b1e1c4284a187114
Diameter
162153894
Circumference
509421482.14138
Area
2.0651169254119E+16
Volume
2.2324450068056E+24
Surface area
8.2604677016476E+16
Circumference
509421482.14138
Perimeter
324307788
Area
6573471334840809
Diagonal
114660118.0432
Surface area
39440828009044854
Volume
5.3295698702091E+23
Space diagonal
140429391.52657
Perimeter
243230841
Area
2.8463965835105E+15
Altitude
70214695.763285
Surface area
2.8463965835105E+15
Volume
6.2809583267206E+22
Height
38220039.347735