81680963 is an odd 8-digits composite number following 81680962
and preceding 81680964 . In scientific notation, it is written as 8.1680963 × 10^7.
The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors.
There are 64626624 positive integers (up to 81680963) that are relatively prime to 81680963.
81680963 has 8 divisors, whose sum is 100530528
The reverse of 81680963 is 36908618
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
eighty-one million six hundred eighty thousand nine hundred sixty-three
Scientific notation
8.1680963 × 10^7
Engineering notation
8.1680963 × 10^6
Prime Factorization
7 × 13 × 897593
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81680963
Product of the distinct prime numbers
The prime factorization of 81680963 is 7 × 13 × 897593.
Since it has a total of 3 prime factors.
10 , 1 , 4 , 88 , 390 , 23 , 9779 , 6082 , 46312 , 21370 , 962888 , 943089 , 6394917 , 3747053 , 2136718 , 24534186 , 389210926 , 270672595 , 7595298049 , 7378717888
n×2
163361926
n×3
245042889
n×4
326723852
n×5
408404815
n÷2
40840481.5
n÷3
27226987.666667
n÷3
20420240.75
n÷5
16336192.6
n2
6671779716607369
n3
5.4495739217636E+23
n4
4.4512644586934E+31
n5
3.6358356755375E+39
2 √n
9037.7520988352
3 √n
433.88398117778
4 √n
95.067092617978
5 √n
38.231749315768
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
-81680962
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 81680963 can be divided by 8 positive divisors.
The sum of these divisors (counting 81680963) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110111100101101001000011
3
Ternary
12200200211012212
4
Quaternary
10313211221003
5
Quinary
131402242323
6
Senary
12034412335
8
Octal
467455103
10
Decimal
81680963
12
Duodecimal
234310ab
16
Hexadecimal
4de5a43
20
Vigesimal
15aa283
36
Base36
1cmpfn
md5
80c05f4823bf4f6d821a4022324a82de
sha1
5d5cdf39b565f7ec09e8ccaeeb3d9440219eeb51
sha256
e7fbc6aafc17243d9f5031a8090db3d6baaaabdcc54d23df0ad1efa32c6d5bb4
sha512
df3a1db26af4a1c32118c155f0cf62c6b32a59d96f105160b79de7a85507a91ddde9e99cf7ad967a8c99a7f7476fccfae9edf55e00136ad473b25ba626c43cc3
ripemd-160
d04c1354d332b8e57e2be27682848ea78e39c35c
Diameter
163361926
Circumference
513216626.59788
Area
2.0960014144063E+16
Volume
2.2827121863743E+24
Surface area
8.3840056576252E+16
Circumference
513216626.59788
Perimeter
326723852
Area
6671779716607369
Diagonal
115514325.66229
Surface area
40030678299644214
Volume
5.4495739217636E+23
Space diagonal
141475577.92715
Perimeter
245042889
Area
2.8889653615179E+15
Altitude
70737788.963577
Surface area
2.8889653615179E+15
Volume
6.4223844577606E+22
Height
38504775.220765