66449891 is an odd 8-digits composite number following 66449890
and preceding 66449892 . In scientific notation, it is written as 6.6449891 × 10^7.
The sum of its digits is 47. It has a total of 3 prime factors and 6 positive divisors.
There are 64652616 positive integers (up to 66449891) that are relatively prime to 66449891.
66449891 has 6 divisors, whose sum is 68295780
The reverse of 66449891 is 19894466
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
sixty-six million four hundred forty-nine thousand eight hundred ninety-one
Scientific notation
6.6449891 × 10^7
Engineering notation
6.6449891 × 10^6
Prime Factorization
37 × 37 × 48539
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
1795943
Product of the distinct prime numbers
The prime factorization of 66449891 is 37 × 37 × 48539.
Since it has a total of 3 prime factors.
2 , 8 , 15 , 96 , 46 , 593 , 5017 , 6907 , 66215 , 31695 , 938931 , 22215 , 1505734 , 4209655 , 42695697 , 34908421 , 608711228 , 398574650 , 8455736221 , 2582116355
n×2
132899782
n×3
199349673
n×4
265799564
n×5
332249455
n÷2
33224945.5
n÷3
22149963.666667
n÷3
16612472.75
n÷5
13289978.2
n2
4415588013911881
n3
2.9341534222535E+23
n4
1.9497417508602E+31
n5
1.2956012682281E+39
2 √n
8151.6802562417
3 √n
405.04016469013
4 √n
90.28665602536
5 √n
36.68587268755
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-66449890
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 66449891 can be divided by 6 positive divisors.
The sum of these divisors (counting 66449891) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
11111101011111000111100011
3
Ternary
11122001000010002
4
Quaternary
3331133013203
5
Quinary
114002344031
6
Senary
10332130215
8
Octal
375370743
10
Decimal
66449891
12
Duodecimal
1a30696b
16
Hexadecimal
3f5f1e3
20
Vigesimal
10f64eb
36
Base36
13k92b
md5
0754dfe29f024f3daf825dfec8d91231
sha1
dbd03b6fbadb6509e190bc9b025738b4e57dfdd3
sha256
2201e72293d65c2d9e3dcb854ab4a700ce51e8eb1269aeba591b280470445e14
sha512
e3937ee0ccf70b7e306e75d282cfe53fef32be108bbb6f63e567a2e4d5847684f7cc45f18ca195118b8aa7fc078fce44ebc9cda8a60034c5cc4fb33902d78288
ripemd-160
4771feea8dbe9cb6823398f15eac741f0336fa29
Diameter
132899782
Circumference
417516978.79489
Area
1.3871978865785E+16
Volume
1.2290553114476E+24
Surface area
5.5487915463139E+16
Circumference
417516978.79489
Perimeter
265799564
Area
4415588013911881
Diagonal
93974337.070414
Surface area
26493528083471286
Volume
2.9341534222535E+23
Space diagonal
115094587.36941
Perimeter
199349673
Area
1.9120056963469E+15
Altitude
57547293.684707
Surface area
1.9120056963469E+15
Volume
3.457932969862E+22
Height
31324779.023471