66697989 is an odd 8-digits composite number following 66697988
and preceding 66697990 . In scientific notation, it is written as 6.6697989 × 10^7.
The sum of its digits is 60. It has a total of 3 prime factors and 8 positive divisors.
There are 44441376 positive integers (up to 66697989) that are relatively prime to 66697989.
66697989 has 8 divisors, whose sum is 88978560
The reverse of 66697989 is 98979666
Previous prime number is 9679
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 60
Digital Root 6
Name
sixty-six million six hundred ninety-seven thousand nine hundred eighty-nine
Scientific notation
6.6697989 × 10^7
Engineering notation
6.6697989 × 10^6
Prime Factorization
3 × 9679 × 2297
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
66697989
Product of the distinct prime numbers
The prime factorization of 66697989 is 3 × 9679 × 2297.
Since it has a total of 3 prime factors.
1 , 4 , 23 , 54 , 408 , 142 , 7529 , 8700 , 73573 , 38797 , 738759 , 116594 , 7908889 , 3711414 , 87393715 , 51543040 , 831681602 , 502585636 , 1985790924 , 1098916377
n×2
133395978
n×3
200093967
n×4
266791956
n×5
333489945
n÷2
33348994.5
n÷3
22232663
n÷3
16674497.25
n÷5
13339597.8
n2
4448621736644121
n3
2.9671412365585E+23
n4
1.9790235355743E+31
n5
1.3199689000647E+39
2 √n
8166.8836773888
3 √n
405.54362601496
4 √n
90.370812087691
5 √n
36.713226018032
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
-66697988
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 66697989 can be divided by 8 positive divisors.
The sum of these divisors (counting 66697989) is 1, the average is 0.125.
Base
System
Value
2
Binary
11111110011011101100000101
3
Ternary
11122111121102220
4
Quaternary
3332123230011
5
Quinary
114033313424
6
Senary
10341322553
8
Octal
376335405
10
Decimal
66697989
12
Duodecimal
1a406459
16
Hexadecimal
3f9bb05
20
Vigesimal
10gh4j9
36
Base36
13pkhx
md5
2b2e969dae7d6fcb8e18fb6eb4a8e011
sha1
acea9e7eee81afbab4b0760da48ddadb476d8c8a
sha256
2fc1643fcf9afe301eef8d5eb882ae86333bb10bf3560c7d2860275f11864ddf
sha512
4bb87e36bb28cd9dff949ebfb804b914124de4ec3f7ea28191264ec7f70dfa5fe884ffed99ad6cdeae6f23ba8c342b455dd729faf67b750a7d4ff77af6ba0a95
ripemd-160
3d6b496b846fbeedbfab1219053435fb203da557
Diameter
133395978
Circumference
419075824.50323
Area
1.3975757366441E+16
Volume
1.2428732147914E+24
Surface area
5.5903029465764E+16
Circumference
419075824.50323
Perimeter
266791956
Area
4448621736644121
Diagonal
94325200.626812
Surface area
26691730419864726
Volume
2.9671412365585E+23
Space diagonal
115524305.71067
Perimeter
200093967
Area
1.9263097178807E+15
Altitude
57762152.855335
Surface area
1.9263097178807E+15
Volume
3.4968094818479E+22
Height
31441733.542271