66871381 is an odd 8-digits prime number following 66871380
and preceding 66871382 . In scientific notation, it is written as 6.6871381 × 10^7.
The sum of its digits is 40. It has a total of 1 prime factors and 2 positive divisors.
There are 66871380 positive integers (up to 66871381) that are relatively prime to 66871381.
66871381 has 2 divisors, whose sum is 66871382
The reverse of 66871381 is 18317866
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 40 Digital Root 4
Name
sixty-six million eight hundred seventy-one thousand three hundred eighty-one
Scientific notation
6.6871381 × 10^7
Engineering notation
6.6871381 × 10^6
Prime Factorization
66871381
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
66871381 Product of the distinct prime numbers
The prime factorization of 66871381 is 66871381.
Since it has a total of 1 prime factors.
6 , 5 , 33 , 56 , 500 , 696 , 1585 , 7468 , 11867 , 27379 , 612679 , 274216 , 4693023 , 2661917 , 13503878 , 52639032 , 703920759 , 548555945 , 8042668171 , 3293204917
n×2
133742762
n×3
200614143
n×4
267485524
n×5
334356905
n÷2
33435690.5
n÷3
22290460.333333
n÷3
16717845.25
n÷5
13374276.2
n2
4471781596847161
n3
2.9903421091155E+23
n4
1.9996830649901E+31
n5
1.337215681182E+39
2 √n8177.4923417879
3 √n405.89474691593
4 √n90.429488231372
5 √n36.73229457031
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
66871382 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
33435691 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
8177.4924029314 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999700918 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 66871381 can be divided by 2 positive divisors.
The sum of these divisors (counting 66871381) is 66871382, the average is 33435691.
Base
System
Value
2
Binary
11111111000110000001010101
3
Ternary
11122211102021211
4
Quaternary
3333012001111
5
Quinary
114104341011
6
Senary
10345141421
8
Octal
377060125
10
Decimal
66871381
12
Duodecimal
1a48a871
16
Hexadecimal
3fc6055
20
Vigesimal
10hii91
36
Base36
13taad
md5
f09402b83b4d89398834f475799e1130
sha1
d6e8c6583da702294ce8043a796abf2f11319ef7
sha256
13cd66a26385cee78608787ed2902df4544ebd6c619098f3a00fd1f2a8c6d5c3
sha512
145d6b48a34c5c1ad0496b39ff73185ac087334eb1bfbdfd9bf78fd2d14c6b287a1a5923d87c1ae2f3fd84d8a3b0744d63a160d599f39d80c10762bd79700019
ripemd-160
449f0d0eeec3e4200c1991fc5bd5609ac196c2e8
Diameter
133742762
Circumference
420165278.57001
Area
1.4048516213113E+16
Volume
1.2525915735623E+24
Surface area
5.6194064852452E+16
Circumference
420165278.57001
Perimeter
267485524
Area
4471781596847161
Diagonal
94570413.944819
Surface area
26830689581082966
Volume
2.9903421091155E+23
Space diagonal
115824629.4643
Perimeter
200614143
Area
1.9363382315227E+15
Altitude
57912314.732148
Surface area
1.9363382315227E+15
Volume
3.5241519723721E+22
Height
31523471.31494