66489871 is an odd 8-digits composite number following 66489870
and preceding 66489872 . In scientific notation, it is written as 6.6489871 × 10^7.
The sum of its digits is 49. It has a total of 2 prime factors and 4 positive divisors.
There are 56991312 positive integers (up to 66489871) that are relatively prime to 66489871.
66489871 has 4 divisors, whose sum is 75988432
The reverse of 66489871 is 17898466
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 49
Digital Root 4
Name
sixty-six million four hundred eighty-nine thousand eight hundred seventy-one
Scientific notation
6.6489871 × 10^7
Engineering notation
6.6489871 × 10^6
Prime Factorization
7 × 9498553
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
66489871
Product of the distinct prime numbers
The prime factorization of 66489871 is 7 × 9498553.
Since it has a total of 2 prime factors.
6 , 10 , 16 , 3 , 569 , 741 , 2573 , 2600 , 73405 , 37126 , 819431 , 992420 , 7620463 , 1887118 , 65879389 , 26601629 , 679346722 , 898847493 , 3054020237 , 1214853210
n×2
132979742
n×3
199469613
n×4
265959484
n×5
332449355
n÷2
33244935.5
n÷3
22163290.333333
n÷3
16622467.75
n÷5
13297974.2
n2
4420902945596641
n3
2.9394526655624E+23
n4
1.9544382854385E+31
n5
1.2995034947627E+39
2 √n
8154.1321426624
3 √n
405.12138006903
4 √n
90.300233347774
5 √n
36.690286083314
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
-66489870
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 66489871 can be divided by 4 positive divisors.
The sum of these divisors (counting 66489871) is 1, the average is 0.25.
Base
System
Value
2
Binary
11111101101000111000001111
3
Ternary
11122010000221211
4
Quaternary
3331220320033
5
Quinary
114010133441
6
Senary
10333035251
8
Octal
375507017
10
Decimal
66489871
12
Duodecimal
1a325b27
16
Hexadecimal
3f68e0f
20
Vigesimal
10fb4db
36
Base36
13l3wv
md5
681acc869b98281c05a73646b7d60d65
sha1
b1773b55918f4086b1b541301cbb1b0098a5d40c
sha256
8e1f6ba9bdd0b35f334bb582d6b028deb0dc58abffa053e3fca9808fe7b97e09
sha512
e6cd19f045a8cb5aa9fc51a382451eade1eb0426c1c96bea0fd00304802e78d7cd5011a3d496d8b623d8746bd02793d0ae7e6acfb0d23dc9b21f47deda52398e
ripemd-160
9686d0f9560ec0a6b5cf2989797b9c819f7fbf30
Diameter
132979742
Circumference
417768180.54347
Area
1.388867621612E+16
Volume
1.2312750532941E+24
Surface area
5.555470486448E+16
Circumference
417768180.54347
Perimeter
265959484
Area
4420902945596641
Diagonal
94030877.328638
Surface area
26525417673579846
Volume
2.9394526655624E+23
Space diagonal
115163834.7607
Perimeter
199469613
Area
1.9143071292761E+15
Altitude
57581917.38035
Surface area
1.9143071292761E+15
Volume
3.4641781879934E+22
Height
31343625.776213