66561913 is an odd 8-digits composite number following 66561912
and preceding 66561914 . In scientific notation, it is written as 6.6561913 × 10^7.
The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors.
There are 60461280 positive integers (up to 66561913) that are relatively prime to 66561913.
66561913 has 8 divisors, whose sum is 72672480
The reverse of 66561913 is 31916566
Previous prime number is 2777
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 37
Digital Root 1
Name
sixty-six million five hundred sixty-one thousand nine hundred thirteen
Scientific notation
6.6561913 × 10^7
Engineering notation
6.6561913 × 10^6
Prime Factorization
11 × 2777 × 2179
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
66561913
Product of the distinct prime numbers
The prime factorization of 66561913 is 11 × 2777 × 2179.
Since it has a total of 3 prime factors.
1 , 8 , 19 , 51 , 133 , 793 , 9470 , 8936 , 48394 , 78815 , 726349 , 969528 , 1213535 , 7939678 , 13322521 , 7693638 , 65343595 , 100899678 , 3695589271 , 1074265050
n×2
133123826
n×3
199685739
n×4
266247652
n×5
332809565
n÷2
33280956.5
n÷3
22187304.333333
n÷3
16640478.25
n÷5
13312382.6
n2
4430488262219569
n3
2.9490177425738E+23
n4
1.9629226241665E+31
n5
1.306558849355E+39
2 √n
8158.5484615831
3 √n
405.26764405085
4 √n
90.324683567578
5 √n
36.698233449462
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
-66561912
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 66561913 can be divided by 8 positive divisors.
The sum of these divisors (counting 66561913) is 1, the average is 0.125.
Base
System
Value
2
Binary
11111101111010011101111001
3
Ternary
11122020200210001
4
Quaternary
3331322131321
5
Quinary
114014440123
6
Senary
10334353001
8
Octal
375723571
10
Decimal
66561913
12
Duodecimal
1a35b761
16
Hexadecimal
3f7a779
20
Vigesimal
10g04fd
36
Base36
13mni1
md5
14feead93ce3f35d4111397d6ef1d4b6
sha1
b2b3e6cd8640428c31585cad65d48bd65c7028ed
sha256
3b53e59696eddf24b4cd8b12b0575d8276c2b9c4b1e79a9ffc0ac6f49b8e3f41
sha512
3e85904325de2717ab0690e15bbd28ce7d4293a61d886194b510fde1138dc40b6b7b09b8af9a0324e5603d70dad82dbf51e983036451cd991ff793a8069cc440
ripemd-160
2e2b7c7e97d098bbc10f576f5c6821476cdf3842
Diameter
133123826
Circumference
418220833.77937
Area
1.3918789376405E+16
Volume
1.2352816633834E+24
Surface area
5.5675157505619E+16
Circumference
418220833.77937
Perimeter
266247652
Area
4430488262219569
Diagonal
94132760.102098
Surface area
26582929573317414
Volume
2.9490177425738E+23
Space diagonal
115288615.16498
Perimeter
199685739
Area
1.9184576931255E+15
Altitude
57644307.58249
Surface area
1.9184576931255E+15
Volume
3.4754507393556E+22
Height
31377586.700699