66871909 is an odd 8-digits composite number following 66871908
and preceding 66871910 . In scientific notation, it is written as 6.6871909 × 10^7.
The sum of its digits is 46. It has a total of 3 prime factors and 8 positive divisors.
There are 61572096 positive integers (up to 66871909) that are relatively prime to 66871909.
66871909 has 8 divisors, whose sum is 72197720
The reverse of 66871909 is 90917866
Previous prime number is 409
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 46
Digital Root 1
Name
sixty-six million eight hundred seventy-one thousand nine hundred nine
Scientific notation
6.6871909 × 10^7
Engineering notation
6.6871909 × 10^6
Prime Factorization
13 × 409 × 12577
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
66871909
Product of the distinct prime numbers
The prime factorization of 66871909 is 13 × 409 × 12577.
Since it has a total of 3 prime factors.
9 , 5 , 83 , 89 , 831 , 282 , 9017 , 9700 , 62143 , 96212 , 376058 , 916893 , 3807740 , 4254084 , 40833311 , 98671166 , 870129441 , 369105173 , 638140378 , 7603887017
n×2
133743818
n×3
200615727
n×4
267487636
n×5
334359545
n÷2
33435954.5
n÷3
22290636.333333
n÷3
16717977.25
n÷5
13374381.8
n2
4471852213304281
n3
2.9904129426953E+23
n4
1.9997462217634E+31
n5
1.3372684736486E+39
2 √n
8177.5246254597
3 √n
405.89581519486
4 √n
90.429666733101
5 √n
36.732352575962
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
-66871908
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 66871909 can be divided by 8 positive divisors.
The sum of these divisors (counting 66871909) is 1, the average is 0.125.
Base
System
Value
2
Binary
11111111000110001001100101
3
Ternary
11122211110000101
4
Quaternary
3333012021211
5
Quinary
114104400114
6
Senary
10345144101
8
Octal
377061145
10
Decimal
66871909
12
Duodecimal
1a48b031
16
Hexadecimal
3fc6265
20
Vigesimal
10hijf9
36
Base36
13tap1
md5
aa055475ad9a0cc01dcbab3bd043ebfe
sha1
5eebb423a40c728d91b50559967b179dad6a689a
sha256
54a87604bcf8a0d0cb362a1081b83497691f85d033b8ee097a4b1efba43bc3b1
sha512
b9e68bd3113975bbd2947621557b58468338ee3ef153be78d25ae99f55d57eb092bda60aac8c21794ce55d02e20ca6e3c2673f509b8e4478ef803a33264329f9
ripemd-160
a12f36a11710201e3603cba5678303b7718525c7
Diameter
133743818
Circumference
420168596.09185
Area
1.4048738061256E+16
Volume
1.2526212442629E+24
Surface area
5.6194952245024E+16
Circumference
420168596.09185
Perimeter
267487636
Area
4471852213304281
Diagonal
94571160.649579
Surface area
26831113279825686
Volume
2.9904129426953E+23
Space diagonal
115825543.98712
Perimeter
200615727
Area
1.9363688093456E+15
Altitude
57912771.993561
Surface area
1.9363688093456E+15
Volume
3.5242354505465E+22
Height
31523720.216526