66561591 is an odd 8-digits composite number following 66561590
and preceding 66561592 . In scientific notation, it is written as 6.6561591 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 44229240 positive integers (up to 66561591) that are relatively prime to 66561591.
66561591 has 8 divisors, whose sum is 89039104
The reverse of 66561591 is 19516566
Previous prime number is 307
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
sixty-six million five hundred sixty-one thousand five hundred ninety-one
Scientific notation
6.6561591 × 10^7
Engineering notation
6.6561591 × 10^6
Prime Factorization
3 × 307 × 72271
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
66561591
Product of the distinct prime numbers
The prime factorization of 66561591 is 3 × 307 × 72271.
Since it has a total of 3 prime factors.
10 , 5 , 68 , 88 , 625 , 720 , 7890 , 4940 , 20614 , 2550 , 586167 , 610589 , 9653307 , 2574136 , 25018984 , 44576841 , 270540000 , 304125376 , 4137522367 , 2261890624
n×2
133123182
n×3
199684773
n×4
266246364
n×5
332807955
n÷2
33280795.5
n÷3
22187197
n÷3
16640397.75
n÷5
13312318.2
n2
4430445396451281
n3
2.9489749442642E+23
n4
1.9628846410936E+31
n5
1.3065272466066E+39
2 √n
8158.5287276567
3 √n
405.26699054203
4 √n
90.324574328677
5 √n
36.698197943109
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
-66561590
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 66561591 can be divided by 8 positive divisors.
The sum of these divisors (counting 66561591) is 1, the average is 0.125.
Base
System
Value
2
Binary
11111101111010011000110111
3
Ternary
11122020200100010
4
Quaternary
3331322120313
5
Quinary
114014432331
6
Senary
10334351303
8
Octal
375723067
10
Decimal
66561591
12
Duodecimal
1a35b533
16
Hexadecimal
3f7a637
20
Vigesimal
10g03jb
36
Base36
13mn93
md5
d53307a7dd87952905e3fc831b5635fd
sha1
55942aceccea48dca52e980113c44336ebecdde2
sha256
ac0ac6f4b202be49228ad8896d6aa9f21a3fec7b0434450ac54bf076094a5435
sha512
f5ffa534d3831003dcb701aff338f788059baae33078fab23e0e99af759f564de55ede3745d174360eecdfee9ccca9be59cbad735b95a03154cc0a696bcb56d6
ripemd-160
ac57fb59f7095342edb6c15f69192e03fd48e35d
Diameter
133123182
Circumference
418218810.5937
Area
1.3918654709622E+16
Volume
1.2352637360694E+24
Surface area
5.5674618838488E+16
Circumference
418218810.5937
Perimeter
266246364
Area
4430445396451281
Diagonal
94132304.725331
Surface area
26582672378707686
Volume
2.9489749442642E+23
Space diagonal
115288057.44462
Perimeter
199684773
Area
1.9184391317033E+15
Altitude
57644028.72231
Surface area
1.9184391317033E+15
Volume
3.4754003010641E+22
Height
31377434.908444