66705988 is an even 8-digits composite number following 66705987
and preceding 66705989 . In scientific notation, it is written as 6.6705988 × 10^7.
The sum of its digits is 49. It has a total of 4 prime factors and 12 positive divisors.
There are 33090120 positive integers (up to 66705988) that are relatively prime to 66705988.
66705988 has 12 divisors, whose sum is 117655552
The reverse of 66705988 is 88950766
Previous prime number is 127
Is Prime? no
Number parity even
Number length 8
Sum of Digits 49
Digital Root 4
Name
sixty-six million seven hundred five thousand nine hundred eighty-eight
Scientific notation
6.6705988 × 10^7
Engineering notation
6.6705988 × 10^6
Prime Factorization
2 × 2 × 127 × 131311
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
33352994
Product of the distinct prime numbers
The prime factorization of 66705988 is 2 × 2 × 127 × 131311.
Since it has a total of 4 prime factors.
8 , 4 , 99 , 36 , 712 , 895 , 3998 , 840 , 6843 , 67237 , 263079 , 254002 , 4620259 , 7431420 , 88682196 , 83055813 , 760154388 , 510471828 , 8906629044 , 7392011959
n×2
133411976
n×3
200117964
n×4
266823952
n×5
333529940
n÷2
33352994
n÷3
22235329.333333
n÷3
16676497
n÷5
13341197.6
n2
4449688835056144
n3
2.9682089003499E+23
n4
1.9799730728823E+31
n5
1.3207606004001E+39
2 √n
8167.3733843874
3 √n
405.55983746721
4 √n
90.373521478293
5 √n
36.714106569342
1 , 2 , 4 , 127 , 254 , 508 , 131311 , 262622 , 525244 , 16676497 , 33352994 , 66705988
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-66705987
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 66705988 can be divided by 12 positive divisors.
The sum of these divisors (counting 66705988) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
11111110011101101001000100
3
Ternary
11122112000102011
4
Quaternary
3332131221010
5
Quinary
114034042423
6
Senary
10341424004
8
Octal
376355104
10
Decimal
66705988
12
Duodecimal
1a40b004
16
Hexadecimal
3f9da44
20
Vigesimal
10gi4j8
36
Base36
13pqo4
md5
42a102fbe9e1a07cbedddbfbb92323f6
sha1
cb9182cd782d451093ccf22698ea485319467d32
sha256
73e2e9e72e7c0ba970a54a5447f9e2eaa8e7de3adb85d7fd94c24e22a54d45a9
sha512
27b3f294094bd61212285d9fb6ebdbcd40cc70ebb6d5faba6c5150000cc5bd5e6ea535f4fed7d27d762649e1c53cbf0e297f5f6c8949658af9627327a75c083b
ripemd-160
23ab5111105e4db93084eafb6cb304932ac1e751
Diameter
133411976
Circumference
419126083.7025
Area
1.3979109754973E+16
Volume
1.2433204367545E+24
Surface area
5.5916439019892E+16
Circumference
419126083.7025
Perimeter
266823952
Area
4449688835056144
Diagonal
94336512.921097
Surface area
26698133010336864
Volume
2.9682089003499E+23
Space diagonal
115538160.38508
Perimeter
200117964
Area
1.9267717850473E+15
Altitude
57769080.19254
Surface area
1.9267717850473E+15
Volume
3.4980677356928E+22
Height
31445504.307032