66406687 is an odd 8-digits composite number following 66406686
and preceding 66406688 . In scientific notation, it is written as 6.6406687 × 10^7.
The sum of its digits is 43. It has a total of 2 prime factors and 4 positive divisors.
There are 66379336 positive integers (up to 66406687) that are relatively prime to 66406687.
66406687 has 4 divisors, whose sum is 66434040
The reverse of 66406687 is 78660466
Previous prime number is 2693
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
sixty-six million four hundred six thousand six hundred eighty-seven
Scientific notation
6.6406687 × 10^7
Engineering notation
6.6406687 × 10^6
Prime Factorization
2693 × 24659
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
66406687
Product of the distinct prime numbers
The prime factorization of 66406687 is 2693 × 24659.
Since it has a total of 2 prime factors.
1 , 2 , 94 , 3 , 618 , 572 , 3545 , 5950 , 41574 , 18397 , 78935 , 42299 , 4196674 , 3892647 , 20102721 , 18875568 , 121569124 , 212778840 , 5629026105 , 4122458469
n×2
132813374
n×3
199220061
n×4
265626748
n×5
332033435
n÷2
33203343.5
n÷3
22135562.333333
n÷3
16601671.75
n÷5
13281337.4
n2
4409848078315969
n3
2.9284340105428E+23
n4
1.9446760073827E+31
n5
1.2913949093867E+39
2 √n
8149.0298195552
3 √n
404.95236344659
4 √n
90.271976933904
5 √n
36.681101005355
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
-66406686
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 66406687 can be divided by 4 positive divisors.
The sum of these divisors (counting 66406687) is 1, the average is 0.25.
Base
System
Value
2
Binary
11111101010100100100011111
3
Ternary
11121221210211221
4
Quaternary
3331110210133
5
Quinary
114000003222
6
Senary
10331154211
8
Octal
375244437
10
Decimal
66406687
12
Duodecimal
1a2a5967
16
Hexadecimal
3f5491f
20
Vigesimal
10f0ge7
36
Base36
13jbq7
md5
061f577e9d05553b99cc698a5db6cb80
sha1
73774aaea28c4ec14168161a1b1d2d71bc7f3fb4
sha256
7cecf2f7881c3ef71b94998f90cb98ec617a7a59224cdd216dbf3a406ac9db83
sha512
3a4b66f3e19f5d5808dcbde70df8b2d4f46e8900c014a72e2412a17eb6d21cf17b6c0d3ff9cf89ee9a56f6dc64cef6fe05ee678a2d3aa8d104b9fdc2b59e7548
ripemd-160
10fd0246c2cceebaa1d76ffb1182769aff1e67ff
Diameter
132813374
Circumference
417245520.05687
Area
1.3853946326285E+16
Volume
1.2266595698725E+24
Surface area
5.5415785305138E+16
Circumference
417245520.05687
Perimeter
265626748
Area
4409848078315969
Diagonal
93913237.387665
Surface area
26459088469895814
Volume
2.9284340105428E+23
Space diagonal
115019755.84632
Perimeter
199220061
Area
1.9095202313258E+15
Altitude
57509877.923162
Surface area
1.9095202313258E+15
Volume
3.4511925785202E+22
Height
31304412.462555