66989838 is an even 8-digits composite number following 66989837
and preceding 66989839 . In scientific notation, it is written as 6.6989838 × 10^7.
The sum of its digits is 57. It has a total of 4 prime factors and 16 positive divisors.
There are 22249920 positive integers (up to 66989838) that are relatively prime to 66989838.
66989838 has 16 divisors, whose sum is 134459856
The reverse of 66989838 is 83898966
Previous prime number is 281
Is Prime? no
Number parity even
Number length 8
Sum of Digits 57
Digital Root 3
Name
sixty-six million nine hundred eighty-nine thousand eight hundred thirty-eight
Scientific notation
6.6989838 × 10^7
Engineering notation
6.6989838 × 10^6
Prime Factorization
2 × 3 × 281 × 39733
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
66989838
Product of the distinct prime numbers
The prime factorization of 66989838 is 2 × 3 × 281 × 39733.
Since it has a total of 4 prime factors.
1 , 3 , 46 , 64 , 393 , 201 , 5877 , 7486 , 52086 , 74989 , 473628 , 912981 , 5345923 , 9771886 , 35929379 , 26805826 , 568319294 , 458356327 , 1200539216 , 9175578682
n×2
133979676
n×3
200969514
n×4
267959352
n×5
334949190
n÷2
33494919
n÷3
22329946
n÷3
16747459.5
n÷5
13397967.6
n2
4487638395266244
n3
3.0062616910147E+23
n4
2.0138898366668E+31
n5
1.3491015390815E+39
2 √n
8184.7320053866
3 √n
406.13427495072
4 √n
90.469508705346
5 √n
36.745298990181
1 , 2 , 3 , 6 , 281 , 562 , 843 , 1686 , 39733 , 79466 , 119199 , 238398 , 11164973 , 22329946 , 33494919 , 66989838
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
-66989837
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 66989838 can be divided by 16 positive divisors.
The sum of these divisors (counting 66989838) is 1, the average is 0.0625.
Base
System
Value
2
Binary
11111111100010111100001110
3
Ternary
11200001102210010
4
Quaternary
3333202330032
5
Quinary
114122133323
6
Senary
10351454050
8
Octal
377427416
10
Decimal
66989838
12
Duodecimal
1a527326
16
Hexadecimal
3fe2f0e
20
Vigesimal
10idebi
36
Base36
13vtou
md5
b400975adfd2a47a7287e4eb88cb879b
sha1
5105e04a4d3330d0bb7a67cbcfb18dd3b767eec6
sha256
074d8a826b6d3d0c23070bc6c6122a949b5a55ab978de6c2ca4c23ffa344e93a
sha512
a6f2bdd9f9d097bbf141427d5124c7681d3e944a1e2496d8e1174857135cdf9796be3885b2b08d55b8bbaf7a41bd622deb8424347b519e49946caa78ae4ca63c
ripemd-160
c7a2331021d589afb22dd44190ebe10dcecaf92c
Diameter
133979676
Circumference
420909565.85194
Area
1.4098331814536E+16
Volume
1.2592599524347E+24
Surface area
5.6393327258144E+16
Circumference
420909565.85194
Perimeter
267959352
Area
4487638395266244
Diagonal
94737937.440777
Surface area
26925830371597464
Volume
3.0062616910147E+23
Space diagonal
116029803.00681
Perimeter
200969514
Area
1.9432044266495E+15
Altitude
58014901.503404
Surface area
1.9432044266495E+15
Volume
3.542913379563E+22
Height
31579312.480259