66561231 is an odd 8-digits composite number following 66561230
and preceding 66561232 . In scientific notation, it is written as 6.6561231 × 10^7.
The sum of its digits is 30. It has a total of 5 prime factors and 32 positive divisors.
There are 39353600 positive integers (up to 66561231) that are relatively prime to 66561231.
66561231 has 32 divisors, whose sum is 99221760
The reverse of 66561231 is 13216566
Previous prime number is 89
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
sixty-six million five hundred sixty-one thousand two hundred thirty-one
Scientific notation
6.6561231 × 10^7
Engineering notation
6.6561231 × 10^6
Prime Factorization
11 × 3 × 131 × 89 × 173
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
66561231
Product of the distinct prime numbers
The prime factorization of 66561231 is 11 × 3 × 131 × 89 × 173.
Since it has a total of 5 prime factors.
2 , 7 , 60 , 18 , 470 , 368 , 9016 , 4021 , 7799 , 39971 , 490708 , 716497 , 8962280 , 5448173 , 79951022 , 68208732 , 96347841 , 980113027 , 1049734063 , 7972403940
n×2
133122462
n×3
199683693
n×4
266244924
n×5
332806155
n÷2
33280615.5
n÷3
22187077
n÷3
16640307.75
n÷5
13312246.2
n2
4430397472235361
n3
2.9489270957127E+23
n4
1.9628421761989E+31
n5
1.3064919150652E+39
2 √n
8158.5066648254
3 √n
405.26625990855
4 √n
90.32445219776
5 √n
36.698158246402
1 , 3 , 11 , 33 , 89 , 131 , 173 , 267 , 393 , 519 , 979 , 1441 , 1903 , 2937 , 4323 , 5709 , 11659 , 15397 , 22663 , 34977 , 46191 , 67989 , 128249 , 169367 , 249293 , 384747 , 508101 , 747879 , 2017007 , 6051021 , 22187077 , 66561231
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-66561230
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 66561231 can be divided by 32 positive divisors.
The sum of these divisors (counting 66561231) is 1, the average is 0.03125.
Base
System
Value
2
Binary
11111101111010010011001111
3
Ternary
11122020122211210
4
Quaternary
3331322103033
5
Quinary
114014424411
6
Senary
10334345503
8
Octal
375722317
10
Decimal
66561231
12
Duodecimal
1a35b293
16
Hexadecimal
3f7a4cf
20
Vigesimal
10g031b
36
Base36
13mmz3
md5
2c839aa04d9eee5701e0b103af6dd909
sha1
8c2c1179be124006130a49d8f94b9a3142f2e309
sha256
1e8dc7f6d9939ed1db3c4c0da029546965553d473133d85218f8ebffb8ec7a08
sha512
e36ccb5d43e63b7e11522482dfbe4fe12f86c10b779a951e6133b57254d80532bf854225bece5a6086d7490a1fa5c8dc4ebe35bec27a4adbfc31c64b91994e63
ripemd-160
9f65bfdc12e3ce5406fd0815521c2f5c5f995c6a
Diameter
133122462
Circumference
418216548.64699
Area
1.3918504151257E+16
Volume
1.2352436933151E+24
Surface area
5.567401660503E+16
Circumference
418216548.64699
Perimeter
266244924
Area
4430397472235361
Diagonal
94131795.608448
Surface area
26582384833412166
Volume
2.9489270957127E+23
Space diagonal
115287433.90633
Perimeter
199683693
Area
1.9184183799091E+15
Altitude
57643716.953164
Surface area
1.9184183799091E+15
Volume
3.4753439110054E+22
Height
31377265.202816