66872989 is an odd 8-digits composite number following 66872988
and preceding 66872990 . In scientific notation, it is written as 6.6872989 × 10^7.
The sum of its digits is 55. It has a total of 2 prime factors and 4 positive divisors.
There are 63353340 positive integers (up to 66872989) that are relatively prime to 66872989.
66872989 has 4 divisors, whose sum is 70392640
The reverse of 66872989 is 98927866
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 55
Digital Root 1
Name
sixty-six million eight hundred seventy-two thousand nine hundred eighty-nine
Scientific notation
6.6872989 × 10^7
Engineering notation
6.6872989 × 10^6
Prime Factorization
19 × 3519631
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
66872989
Product of the distinct prime numbers
The prime factorization of 66872989 is 19 × 3519631.
Since it has a total of 2 prime factors.
3 , 3 , 68 , 10 , 79 , 113 , 2126 , 1878 , 80067 , 45534 , 989943 , 391139 , 4915540 , 7128193 , 83077683 , 24443954 , 602549655 , 132807515 , 5463833695 , 5158831939
n×2
133745978
n×3
200618967
n×4
267491956
n×5
334364945
n÷2
33436494.5
n÷3
22290996.333333
n÷3
16718247.25
n÷5
13374597.8
n2
4471996657794121
n3
2.990557833047E+23
n4
1.9998754107322E+31
n5
1.3373764634326E+39
2 √n
8177.590659846
3 √n
405.89800029335
4 √n
90.430031846981
5 √n
36.732471222746
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
-66872988
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 66872989 can be divided by 4 positive divisors.
The sum of these divisors (counting 66872989) is 1, the average is 0.25.
Base
System
Value
2
Binary
11111111000110011010011101
3
Ternary
11122211111111101
4
Quaternary
3333012122131
5
Quinary
114104413424
6
Senary
10345153101
8
Octal
377063235
10
Decimal
66872989
12
Duodecimal
1a48b791
16
Hexadecimal
3fc669d
20
Vigesimal
10hj299
36
Base36
13tbj1
md5
b4e2baea318d9b682170ea3b8353ab0b
sha1
c0ab877a34b7de7aa497f6dd1dac3287a807c305
sha256
c076b29d1e1d8d5ed058734bcf7d7a54ec3cfe39d713742d9e92e53610edcca0
sha512
e77bed52d132002a9f4c157bd818144bc24c1c39e6984a2f48e7cd5b7b6ca42706b0890c1216ebdfef4cd703cc27dac51a1389b66166dde2c86a5dd8c0aa3c78
ripemd-160
e3285c9c2a604d928a94d03319fa7a44bfdb42bd
Diameter
133745978
Circumference
420175381.93198
Area
1.4049191847004E+16
Volume
1.2526819357915E+24
Surface area
5.6196767388016E+16
Circumference
420175381.93198
Perimeter
267491956
Area
4471996657794121
Diagonal
94572688.000227
Surface area
26831979946764726
Volume
2.990557833047E+23
Space diagonal
115827414.60199
Perimeter
200618967
Area
1.9364313556444E+15
Altitude
57913707.300997
Surface area
1.9364313556444E+15
Volume
3.5244062054635E+22
Height
31524229.333409