66561187 is an odd 8-digits composite number following 66561186
and preceding 66561188 . In scientific notation, it is written as 6.6561187 × 10^7.
The sum of its digits is 40. It has a total of 4 prime factors and 16 positive divisors.
There are 49507200 positive integers (up to 66561187) that are relatively prime to 66561187.
66561187 has 16 divisors, whose sum is 70566912
The reverse of 66561187 is 78116566
Previous prime number is 61
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
sixty-six million five hundred sixty-one thousand one hundred eighty-seven
Scientific notation
6.6561187 × 10^7
Engineering notation
6.6561187 × 10^6
Prime Factorization
77 × 37 × 61 × 383
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
66561187
Product of the distinct prime numbers
The prime factorization of 66561187 is 77 × 37 × 61 × 383.
Since it has a total of 4 prime factors.
5 , 9 , 12 , 98 , 969 , 534 , 1621 , 7474 , 66471 , 96240 , 335118 , 121708 , 2864942 , 5597008 , 25906036 , 20653393 , 870690693 , 926099770 , 2747903745 , 377779980
n×2
133122374
n×3
199683561
n×4
266244748
n×5
332805935
n÷2
33280593.5
n÷3
22187062.333333
n÷3
16640296.75
n÷5
13312237.4
n2
4430391614848969
n3
2.9489212475919E+23
n4
1.9628369860924E+31
n5
1.3064875968181E+39
2 √n
8158.503968253
3 √n
405.26617060873
4 √n
90.324437270614
5 √n
36.69815339457
1 , 37 , 61 , 77 , 383 , 2257 , 2849 , 4697 , 14171 , 23363 , 29491 , 173789 , 864431 , 1091167 , 1798951 , 66561187
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-66561186
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 66561187 can be divided by 16 positive divisors.
The sum of these divisors (counting 66561187) is 1, the average is 0.0625.
Base
System
Value
2
Binary
11111101111010010010100011
3
Ternary
11122020122210011
4
Quaternary
3331322102203
5
Quinary
114014424222
6
Senary
10334345351
8
Octal
375722243
10
Decimal
66561187
12
Duodecimal
1a35b257
16
Hexadecimal
3f7a4a3
20
Vigesimal
10g02j7
36
Base36
13mmxv
md5
56a80d1d9c819dad74fa0792b920a2d3
sha1
00d221a401138ab7653d35734e5b4192b2804772
sha256
d29ce3210c7591b9db6a67d5a248ab51dec8076a677613382f71dfe694380154
sha512
ea9f3c3b4d90b4247a453634caa8acc9288e599890a709e7b2136e7830e62f92591d6dfe295302c3747ad071388e20a3b3180332d82e3821c87cfb7441bb35e9
ripemd-160
65ab952f517118697eed24826b71dfb5a3b5d876
Diameter
133122374
Circumference
418216272.18683
Area
1.3918485749735E+16
Volume
1.23524124366E+24
Surface area
5.5673942998941E+16
Circumference
418216272.18683
Perimeter
266244748
Area
4430391614848969
Diagonal
94131733.383052
Surface area
26582349689093814
Volume
2.9489212475919E+23
Space diagonal
115287357.69609
Perimeter
199683561
Area
1.9184158435864E+15
Altitude
57643678.848047
Surface area
1.9184158435864E+15
Volume
3.4753370189289E+22
Height
31377244.461017