66561688 is an even 8-digits composite number following 66561687
and preceding 66561689 . In scientific notation, it is written as 6.6561688 × 10^7.
The sum of its digits is 46. It has a total of 4 prime factors and 8 positive divisors.
There are 33280840 positive integers (up to 66561688) that are relatively prime to 66561688.
66561688 has 8 divisors, whose sum is 124803180
The reverse of 66561688 is 88616566
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 46
Digital Root 1
Name
sixty-six million five hundred sixty-one thousand six hundred eighty-eight
Scientific notation
6.6561688 × 10^7
Engineering notation
6.6561688 × 10^6
Prime Factorization
2 × 2 × 2 × 8320211
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
16640422
Product of the distinct prime numbers
The prime factorization of 66561688 is 2 × 2 × 2 × 8320211.
Since it has a total of 4 prime factors.
5 , 3 , 38 , 14 , 832 , 171 , 9313 , 8099 , 94579 , 98230 , 146071 , 280789 , 8972197 , 6391735 , 92554600 , 71469066 , 560377121 , 373525317 , 7584476998 , 2039787834
n×2
133123376
n×3
199685064
n×4
266246752
n×5
332808440
n÷2
33280844
n÷3
22187229.333333
n÷3
16640422
n÷5
13312337.6
n2
4430458309409344
n3
2.9489878368791E+23
n4
1.9628960831414E+31
n5
1.3065367666248E+39
2 √n
8158.5346723539
3 √n
405.26718740671
4 √n
90.32460723609
5 √n
36.698208639136
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
-66561687
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 66561688 can be divided by 8 positive divisors.
The sum of these divisors (counting 66561688) is 1, the average is 0.125.
Base
System
Value
2
Binary
11111101111010011010011000
3
Ternary
11122020200110201
4
Quaternary
3331322122120
5
Quinary
114014433223
6
Senary
10334351544
8
Octal
375723230
10
Decimal
66561688
12
Duodecimal
1a35b5b4
16
Hexadecimal
3f7a698
20
Vigesimal
10g0448
36
Base36
13mnbs
md5
3632891b5b23fed489326b9c326098a4
sha1
b9a3f4ef34b9fdd1856f86633d6e7d8e86acaa76
sha256
6042a95fada8a827ad2795d68ba45be859f6737c9159a35ad8c7631d2a54bde5
sha512
f69c4dea9ce68604ba3fd95fc0be39fad29f5592161237d207f98a953db27871eae5f22a31e76aa1184e99388bf3bd6c20ce48173052a466b091bf1b07ef1a92
ripemd-160
915f57cc45661a4607abc21a0b42fdb865daa501
Diameter
133123376
Circumference
418219420.06267
Area
1.3918695276876E+16
Volume
1.2352691365153E+24
Surface area
5.5674781107505E+16
Circumference
418219420.06267
Perimeter
266246752
Area
4430458309409344
Diagonal
94132441.904047
Surface area
26582749856456064
Volume
2.9489878368791E+23
Space diagonal
115288225.45355
Perimeter
199685064
Area
1.9184447231782E+15
Altitude
57644112.726774
Surface area
1.9184447231782E+15
Volume
3.4754154951565E+22
Height
31377480.634682