66872561 is an odd 8-digits composite number following 66872560
and preceding 66872562 . In scientific notation, it is written as 6.6872561 × 10^7.
The sum of its digits is 41. It has a total of 3 prime factors and 8 positive divisors.
There are 57280608 positive integers (up to 66872561) that are relatively prime to 66872561.
66872561 has 8 divisors, whose sum is 76477440
The reverse of 66872561 is 16527866
Previous prime number is 2297
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
sixty-six million eight hundred seventy-two thousand five hundred sixty-one
Scientific notation
6.6872561 × 10^7
Engineering notation
6.6872561 × 10^6
Prime Factorization
7 × 2297 × 4159
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
66872561
Product of the distinct prime numbers
The prime factorization of 66872561 is 7 × 2297 × 4159.
Since it has a total of 3 prime factors.
3 , 4 , 66 , 100 , 349 , 576 , 5406 , 5698 , 58866 , 4935 , 724802 , 125953 , 8772732 , 3628035 , 68455862 , 35089875 , 841173709 , 692798263 , 2779236009 , 7611972455
n×2
133745122
n×3
200617683
n×4
267490244
n×5
334362805
n÷2
33436280.5
n÷3
22290853.666667
n÷3
16718140.25
n÷5
13374512.2
n2
4471939414698721
n3
2.9905004129774E+23
n4
1.9998242128736E+31
n5
1.3373336666467E+39
2 √n
8177.5644907271
3 √n
405.89713434973
4 √n
90.429887154232
5 √n
36.732424203648
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
-66872560
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 66872561 can be divided by 8 positive divisors.
The sum of these divisors (counting 66872561) is 1, the average is 0.125.
Base
System
Value
2
Binary
11111111000110010011110001
3
Ternary
11122211110220112
4
Quaternary
3333012103301
5
Quinary
114104410221
6
Senary
10345151105
8
Octal
377062361
10
Decimal
66872561
12
Duodecimal
1a48b495
16
Hexadecimal
3fc64f1
20
Vigesimal
10hj181
36
Base36
13tb75
md5
efc7aa2b713a17b5f2fadcf68da671ac
sha1
42afc920af1fe4096e99cd4685ea656b9260cc07
sha256
31082736732d78fe857eb60ddccedfb92dc746328ea3ad137b9b5116283fa4d1
sha512
88236e4e6a013007a9a322be669ed8328391792314a4d1560721c6c8e126a3397b600ead2c59dd5707e1ba0a56b91fac7e709fd5f70162304c4064550b2d4e37
ripemd-160
3e3ade6a8c17490266a3154b99a0c6b6a317b9a1
Diameter
133745122
Circumference
420172692.72867
Area
1.4049012012516E+16
Volume
1.252657883729E+24
Surface area
5.6196048050065E+16
Circumference
420172692.72867
Perimeter
267490244
Area
4471939414698721
Diagonal
94572082.716822
Surface area
26831636488192326
Volume
2.9905004129774E+23
Space diagonal
115826673.28425
Perimeter
200617683
Area
1.936406568657E+15
Altitude
57913336.642125
Surface area
1.936406568657E+15
Volume
3.5243385352625E+22
Height
31524027.572274