81678082 is an even 8-digits composite number following 81678081
and preceding 81678083 . In scientific notation, it is written as 8.1678082 × 10^7.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 40839040 positive integers (up to 81678082) that are relatively prime to 81678082.
81678082 has 4 divisors, whose sum is 122517126
The reverse of 81678082 is 28087618
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 40
Digital Root 4
Name
eighty-one million six hundred seventy-eight thousand eighty-two
Scientific notation
8.1678082 × 10^7
Engineering notation
8.1678082 × 10^6
Prime Factorization
2 × 40839041
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
81678082
Product of the distinct prime numbers
The prime factorization of 81678082 is 2 × 40839041.
Since it has a total of 2 prime factors.
5 , 5 , 1 , 82 , 114 , 640 , 8425 , 5527 , 6921 , 99344 , 204886 , 400906 , 2527756 , 726168 , 23992435 , 52366507 , 582836822 , 615330163 , 9015379498 , 173223800
n×2
163356164
n×3
245034246
n×4
326712328
n×5
408390410
n÷2
40839041
n÷3
27226027.333333
n÷3
20419520.5
n÷5
16335616.4
n2
6671309079198724
n3
5.4489973001814E+23
n4
4.4506364830199E+31
n5
3.6351945161229E+39
2 √n
9037.5927104512
3 √n
433.87887988938
4 √n
95.066254320085
5 √n
38.231479614677
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-81678081
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 81678082 can be divided by 4 positive divisors.
The sum of these divisors (counting 81678082) is 1, the average is 0.25.
Base
System
Value
2
Binary
100110111100100111100000010
3
Ternary
12200200200021011
4
Quaternary
10313210330002
5
Quinary
131402144312
6
Senary
12034351134
8
Octal
467447402
10
Decimal
81678082
12
Duodecimal
2342b4aa
16
Hexadecimal
4de4f02
20
Vigesimal
15a9f42
36
Base36
1cmn7m
md5
afc195e0048cae5db29b0da1a7114dae
sha1
f1d7c096f0362498414ce09bb8db5c4bcee538ee
sha256
76621df61c8cd39d891aa2771e4c0d31bc132541f34d4d54b92317b875fad7d2
sha512
fdc87b07d8ee692df3935f6641328fc2d42f8bf228c524fcab4e99722ba1698f69fea2fcf921e78693b0e519d431e11735d12ab021d25ff0365947dbf95fa3da
ripemd-160
7c65bbf4c04aa4c9f262d73f1121c1ead5c1f53e
Diameter
163356164
Circumference
513198524.74101
Area
2.0958535593038E+16
Volume
2.2824706516907E+24
Surface area
8.383414237215E+16
Circumference
513198524.74101
Perimeter
326712328
Area
6671309079198724
Diagonal
115510251.31302
Surface area
40027854475192344
Volume
5.4489973001814E+23
Space diagonal
141470587.88878
Perimeter
245034246
Area
2.8887615695419E+15
Altitude
70735293.944388
Surface area
2.8887615695419E+15
Volume
6.4217049027091E+22
Height
38503417.104341