66561431 is an odd 8-digits composite number following 66561430
and preceding 66561432 . In scientific notation, it is written as 6.6561431 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 65329920 positive integers (up to 66561431) that are relatively prime to 66561431.
66561431 has 8 divisors, whose sum is 67797744
The reverse of 66561431 is 13416566
Previous prime number is 643
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
sixty-six million five hundred sixty-one thousand four hundred thirty-one
Scientific notation
6.6561431 × 10^7
Engineering notation
6.6561431 × 10^6
Prime Factorization
61 × 643 × 1697
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
66561431
Product of the distinct prime numbers
The prime factorization of 66561431 is 61 × 643 × 1697.
Since it has a total of 3 prime factors.
1 , 9 , 27 , 22 , 148 , 153 , 7784 , 4187 , 65143 , 31711 , 275216 , 378820 , 6151916 , 439983 , 85582590 , 44762960 , 978058809 , 575398967 , 6680058207 , 5058831731
n×2
133122862
n×3
199684293
n×4
266245724
n×5
332807155
n÷2
33280715.5
n÷3
22187143.666667
n÷3
16640357.75
n÷5
13312286.2
n2
4430424096767761
n3
2.9489536781774E+23
n4
1.962865767722E+31
n5
1.3065115436049E+39
2 √n
8158.5189219613
3 √n
405.26666581637
4 √n
90.324520048331
5 √n
36.698180300149
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
-66561430
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 66561431 can be divided by 8 positive divisors.
The sum of these divisors (counting 66561431) is 1, the average is 0.125.
Base
System
Value
2
Binary
11111101111010010110010111
3
Ternary
11122020200010012
4
Quaternary
3331322112113
5
Quinary
114014431211
6
Senary
10334350435
8
Octal
375722627
10
Decimal
66561431
12
Duodecimal
1a35b41b
16
Hexadecimal
3f7a597
20
Vigesimal
10g03bb
36
Base36
13mn4n
md5
645f48622b8764e6d3313f7384887e4a
sha1
9ae1d0b5f8a148e733c230e608a10d7c45449e92
sha256
6fb3a83463a5ddc19b3fabdcb9ae5bfbc5f33f1fcf875af7d0c41d995079a281
sha512
094b7a41c1851a23349669c4d33e5b0037184be657ef9e69dba1388c3d2137db802b0bdac3943be9ae207c3136cff47dae9f674fe7874da1744d7923211ca6fa
ripemd-160
98c8c0b332b8de6a8ce476274ee2b45b071b06cb
Diameter
133122862
Circumference
418217805.28405
Area
1.3918587794693E+16
Volume
1.2352548281518E+24
Surface area
5.5674351178771E+16
Circumference
418217805.28405
Perimeter
266245724
Area
4430424096767761
Diagonal
94132078.451161
Surface area
26582544580606566
Volume
2.9489536781774E+23
Space diagonal
115287780.31649
Perimeter
199684293
Area
1.9184299086698E+15
Altitude
57643890.158245
Surface area
1.9184299086698E+15
Volume
3.4753752387405E+22
Height
31377359.48372