66561937 is an odd 8-digits composite number following 66561936
and preceding 66561938 . In scientific notation, it is written as 6.6561937 × 10^7.
The sum of its digits is 43. It has a total of 3 prime factors and 8 positive divisors.
There are 61194000 positive integers (up to 66561937) that are relatively prime to 66561937.
66561937 has 8 divisors, whose sum is 71971200
The reverse of 66561937 is 73916566
Previous prime number is 251
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 43
Digital Root 7
Name
sixty-six million five hundred sixty-one thousand nine hundred thirty-seven
Scientific notation
6.6561937 × 10^7
Engineering notation
6.6561937 × 10^6
Prime Factorization
13 × 251 × 20399
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
66561937
Product of the distinct prime numbers
The prime factorization of 66561937 is 13 × 251 × 20399.
Since it has a total of 3 prime factors.
9 , 6 , 1 , 47 , 404 , 296 , 5217 , 9864 , 69109 , 87501 , 821622 , 529627 , 3917858 , 7131345 , 44961188 , 82798248 , 394953011 , 551941253 , 2967007723 , 4456744666
n×2
133123874
n×3
199685811
n×4
266247748
n×5
332809685
n÷2
33280968.5
n÷3
22187312.333333
n÷3
16640484.25
n÷5
13312387.4
n2
4430491457191969
n3
2.9490209325265E+23
n4
1.9629254552251E+31
n5
1.3065612048639E+39
2 √n
8158.5499324328
3 √n
405.2676927595
4 √n
90.324691709592
5 √n
36.698236095893
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
-66561936
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 66561937 can be divided by 8 positive divisors.
The sum of these divisors (counting 66561937) is 1, the average is 0.125.
Base
System
Value
2
Binary
11111101111010011110010001
3
Ternary
11122020200210221
4
Quaternary
3331322132101
5
Quinary
114014440222
6
Senary
10334353041
8
Octal
375723621
10
Decimal
66561937
12
Duodecimal
1a35b781
16
Hexadecimal
3f7a791
20
Vigesimal
10g04gh
36
Base36
13mnip
md5
64da2b51aab6063fa572d3103b14c7e9
sha1
4b45daa96409dc7ce810b792454f9cafe212dcb7
sha256
1d8d843a6b415b482e7305195433416c433e5ccf798381b9b0283ba4be7621a6
sha512
4cce20671797f9abbcdf89c334c3c5e8a1fdd0da6de6ffd05a6ecf654961d41a62d88c56d4fa7ff6b266a3fba6b6fd0bc4e73c036e7759a48338284fc34cfd2c
ripemd-160
8e03df236e50b218f53ba5df72f9a4b4bf1a32fd
Diameter
133123874
Circumference
418220984.57581
Area
1.3918799413707E+16
Volume
1.2352829995877E+24
Surface area
5.5675197654827E+16
Circumference
418220984.57581
Perimeter
266247748
Area
4430491457191969
Diagonal
94132794.043224
Surface area
26582948743151814
Volume
2.9490209325265E+23
Space diagonal
115288656.7342
Perimeter
199685811
Area
1.9184590765891E+15
Altitude
57644328.367099
Surface area
1.9184590765891E+15
Volume
3.4754544987509E+22
Height
31377598.014408