66561931 is an odd 8-digits composite number following 66561930
and preceding 66561932 . In scientific notation, it is written as 6.6561931 × 10^7.
The sum of its digits is 37. It has a total of 2 prime factors and 4 positive divisors.
There are 61471872 positive integers (up to 66561931) that are relatively prime to 66561931.
66561931 has 4 divisors, whose sum is 66662392
The reverse of 66561931 is 13916566
Previous prime number is 667
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 thirty-one
Scientific notation
6.6561931 × 10^7
Engineering notation
6.6561931 × 10^6
Prime Factorization
667 × 99793
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
66561931
Product of the distinct prime numbers
The prime factorization of 66561931 is 667 × 99793.
Since it has a total of 2 prime factors.
9 , 6 , 22 , 53 , 219 , 450 , 5808 , 5198 , 58854 , 50953 , 368748 , 465851 , 3871157 , 2239066 , 30289441 , 70398711 , 851305468 , 161377582 , 1293170427 , 4684455665
n×2
133123862
n×3
199685793
n×4
266247724
n×5
332809655
n÷2
33280965.5
n÷3
22187310.333333
n÷3
16640482.75
n÷5
13312386.2
n2
4430490658448761
n3
2.9490201350381E+23
n4
1.9629247474602E+31
n5
1.3065606159864E+39
2 √n
8158.5495647204
3 √n
405.26768058234
4 √n
90.324689674089
5 √n
36.698235434285
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-66561930
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 66561931 can be divided by 4 positive divisors.
The sum of these divisors (counting 66561931) is 1, the average is 0.25.
Base
System
Value
2
Binary
11111101111010011110001011
3
Ternary
11122020200210201
4
Quaternary
3331322132023
5
Quinary
114014440211
6
Senary
10334353031
8
Octal
375723613
10
Decimal
66561931
12
Duodecimal
1a35b777
16
Hexadecimal
3f7a78b
20
Vigesimal
10g04gb
36
Base36
13mnij
md5
a71f58e4a4cdcc1a0b7e4abf58372ccc
sha1
09dca0afe2b0028a56eaf032123e16c400bc4a5e
sha256
4bb5f60421961b601ae9eecb7892de374ec21b3362d0232c9bcd00e1a764c288
sha512
f3430c6f4a94461dab6e5c195b6d3908f814652b605f504a301bd2026e3b00e0928eae56ea1f85cbabec92dd4a073cd93b6844a9d5b3d7623e85d55cff058e76
ripemd-160
0aae5377eb7d366c774a971060eb19b05ea9c44c
Diameter
133123862
Circumference
418220946.8767
Area
1.3918796904381E+16
Volume
1.2352826655365E+24
Surface area
5.5675187617523E+16
Circumference
418220946.8767
Perimeter
266247724
Area
4430490658448761
Diagonal
94132785.557942
Surface area
26582943950692566
Volume
2.9490201350381E+23
Space diagonal
115288646.34189
Perimeter
199685793
Area
1.9184587307231E+15
Altitude
57644323.170947
Surface area
1.9184587307231E+15
Volume
3.4754535589019E+22
Height
31377595.185981