66886938 is an even 8-digits composite number following 66886937
and preceding 66886939 . In scientific notation, it is written as 6.6886938 × 10^7.
The sum of its digits is 54. It has a total of 4 prime factors and 16 positive divisors.
There are 22295628 positive integers (up to 66886938) that are relatively prime to 66886938.
66886938 has 16 divisors, whose sum is 148637760
The reverse of 66886938 is 83968866
Previous prime number is 9
Is Prime? no
Number parity even
Number length 8
Sum of Digits 54
Digital Root 9
Name
sixty-six million eight hundred eighty-six thousand nine hundred thirty-eight
Scientific notation
6.6886938 × 10^7
Engineering notation
6.6886938 × 10^6
Prime Factorization
2 × 3 × 9 × 1238647
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
66886938
Product of the distinct prime numbers
The prime factorization of 66886938 is 2 × 3 × 9 × 1238647.
Since it has a total of 4 prime factors.
5 , 5 , 23 , 78 , 759 , 17 , 5895 , 640 , 48900 , 1365 , 294639 , 239494 , 1033603 , 2958161 , 6966296 , 28696347 , 444026559 , 563024993 , 9932566236 , 9785687026
n×2
133773876
n×3
200660814
n×4
267547752
n×5
334434690
n÷2
33443469
n÷3
22295646
n÷3
16721734.5
n÷5
13377387.6
n2
4473862475015844
n3
2.9924296198691E+23
n4
2.0015445445355E+31
n5
1.3387718585458E+39
2 √n
8178.4434949445
3 √n
405.92622034486
4 √n
90.434747165813
5 √n
36.734003496099
1 , 2 , 3 , 6 , 9 , 18 , 27 , 54 , 1238647 , 2477294 , 3715941 , 7431882 , 11147823 , 22295646 , 33443469 , 66886938
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-66886937
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 66886938 can be divided by 16 positive divisors.
The sum of these divisors (counting 66886938) is 1, the average is 0.0625.
Base
System
Value
2
Binary
11111111001001110100011010
3
Ternary
11122212012122000
4
Quaternary
3333021310122
5
Quinary
114110340223
6
Senary
10345341430
8
Octal
377116432
10
Decimal
66886938
12
Duodecimal
1a497876
16
Hexadecimal
3fc9d1a
20
Vigesimal
10i0h6i
36
Base36
13tmai
md5
348188de8e878633488af9c36dd2917e
sha1
fbf0ff821a69d6e57ca2bbe4208980271b171ecb
sha256
41e9396d681520807e9d61307a8cfef9468995b6468b6200fb70c554353bd89b
sha512
c4cd2f23a916325d8df26f376a3c1432896db7fd3fd32e127d8ed9dfb90bbe0e22e7573a610f333cc9654489406f91264aa071332864ff2a59bcc84c0cc27a94
ripemd-160
92cfd74c3521a4a6c70be33758f15654d74d9e35
Diameter
133773876
Circumference
420263026.08383
Area
1.4055053484681E+16
Volume
1.253465988022E+24
Surface area
5.6220213938723E+16
Circumference
420263026.08383
Perimeter
267547752
Area
4473862475015844
Diagonal
94592414.865208
Surface area
26843174850095064
Volume
2.9924296198691E+23
Space diagonal
115851574.97871
Perimeter
200660814
Area
1.9372392782008E+15
Altitude
57925787.489355
Surface area
1.9372392782008E+15
Volume
3.5266121273882E+22
Height
31530804.955069