81668097 is an odd 8-digits composite number following 81668096
and preceding 81668098 . In scientific notation, it is written as 8.1668097 × 10^7.
The sum of its digits is 45. It has a total of 3 prime factors and 8 positive divisors.
There are 46667448 positive integers (up to 81668097) that are relatively prime to 81668097.
81668097 has 8 divisors, whose sum is 103705600
The reverse of 81668097 is 79086618
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
eighty-one million six hundred sixty-eight thousand ninety-seven
Scientific notation
8.1668097 × 10^7
Engineering notation
8.1668097 × 10^6
Prime Factorization
9 × 7 × 1296319
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
81668097
Product of the distinct prime numbers
The prime factorization of 81668097 is 9 × 7 × 1296319.
Since it has a total of 3 prime factors.
2 , 7 , 78 , 75 , 231 , 219 , 7011 , 8641 , 20168 , 30621 , 575035 , 532664 , 5910344 , 6722770 , 95624965 , 69093741 , 321746699 , 924644184 , 7444842865 , 9893968900
n×2
163336194
n×3
245004291
n×4
326672388
n×5
408340485
n÷2
40834048.5
n÷3
27222699
n÷3
20417024.25
n÷5
16333619.4
n2
6669678067601409
n3
5.4469991538364E+23
n4
4.4484605525443E+31
n5
3.6329730790586E+39
2 √n
9037.0402787638
3 √n
433.86119886219
4 √n
95.063348766829
5 √n
38.230544822912
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
-81668096
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 81668097 can be divided by 8 positive divisors.
The sum of these divisors (counting 81668097) is 1, the average is 0.125.
Base
System
Value
2
Binary
100110111100010100000000001
3
Ternary
12200200011120100
4
Quaternary
10313202200001
5
Quinary
131401334342
6
Senary
12034233013
8
Octal
467424001
10
Decimal
81668097
12
Duodecimal
23425769
16
Hexadecimal
4de2801
20
Vigesimal
15a8a4h
36
Base36
1cmfi9
md5
7037c4c06d294138ef5811aa1497e3c8
sha1
2e01029dda8beab5054093c4c5afe1e5150e6205
sha256
f3154ed6e1a49ec0fc998595ede082fe1311474928bf0ffe61bca974c57b015c
sha512
ae2de93efef387a5fa2f6fe0fe9d18af035987e3584f62fef66a753063c0b09843da8da5d271dbc95b7e719f69df7c7855fa2869464247e58311acc44ad405aa
ripemd-160
0406c76ea865695f170c5980bdbc1eefc1114bc9
Diameter
163336194
Circumference
513135787.13572
Area
2.0953411618986E+16
Volume
2.281633670107E+24
Surface area
8.3813646475942E+16
Circumference
513135787.13572
Perimeter
326672388
Area
6669678067601409
Diagonal
115496130.3906
Surface area
40018068405608454
Volume
5.4469991538364E+23
Space diagonal
141453293.36146
Perimeter
245004291
Area
2.8880553208034E+15
Altitude
70726646.680732
Surface area
2.8880553208034E+15
Volume
6.4193500646586E+22
Height
38498710.1302