66996921 is an odd 8-digits composite number following 66996920
and preceding 66996922 . In scientific notation, it is written as 6.6996921 × 10^7.
The sum of its digits is 48. It has a total of 3 prime factors and 8 positive divisors.
There are 43223760 positive integers (up to 66996921) that are relatively prime to 66996921.
66996921 has 8 divisors, whose sum is 92210944
The reverse of 66996921 is 12969966
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 48
Digital Root 3
Name
sixty-six million nine hundred ninety-six thousand nine hundred twenty-one
Scientific notation
6.6996921 × 10^7
Engineering notation
6.6996921 × 10^6
Prime Factorization
3 × 31 × 720397
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
66996921
Product of the distinct prime numbers
The prime factorization of 66996921 is 3 × 31 × 720397.
Since it has a total of 3 prime factors.
3 , 7 , 2 , 69 , 406 , 985 , 6667 , 8736 , 68021 , 43847 , 147207 , 649380 , 8831244 , 581575 , 96131708 , 5365505 , 64473680 , 176109490 , 3501086150 , 4350292821
n×2
133993842
n×3
200990763
n×4
267987684
n×5
334984605
n÷2
33498460.5
n÷3
22332307
n÷3
16749230.25
n÷5
13399384.2
n2
4488587423480241
n3
3.007215370125E+23
n4
2.0147417058225E+31
n5
1.349814909004E+39
2 √n
8185.164689852
3 √n
406.14858830418
4 √n
90.471900001337
5 √n
36.746075991451
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
-66996920
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 66996921 can be divided by 8 positive divisors.
The sum of these divisors (counting 66996921) is 1, the average is 0.125.
Base
System
Value
2
Binary
11111111100100101010111001
3
Ternary
11200001210111110
4
Quaternary
3333210222321
5
Quinary
114122400141
6
Senary
10351550533
8
Octal
377445271
10
Decimal
66996921
12
Duodecimal
1a52b449
16
Hexadecimal
3fe4ab9
20
Vigesimal
10iec61
36
Base36
13vz5l
md5
3d478165c109b66fa10f26c3b0ffd3bb
sha1
db8242eb185bc0093e76134d7457eca21de8a479
sha256
8f7333f9de28b42a4f4507a9966644c12a1c4209f1eeb945851110bf4acfc449
sha512
762fcea7b1c8cdf3a9a324a1bb600163e5daa1584e4de0498d35a20df9af7b270226eff71baaf830df8a38c3de6a26096e8762bbdfc360e9c5f88c99213487c0
ripemd-160
dd78a0a660410a7dc8227979d61d2ed7e68d1b5c
Diameter
133993842
Circumference
420954069.65347
Area
1.4101313274601E+16
Volume
1.2596594286063E+24
Surface area
5.6405253098404E+16
Circumference
420954069.65347
Perimeter
267987684
Area
4488587423480241
Diagonal
94747954.315439
Surface area
26931524540881446
Volume
3.007215370125E+23
Space diagonal
116042071.12268
Perimeter
200990763
Area
1.9436153679206E+15
Altitude
58021035.561339
Surface area
1.9436153679206E+15
Volume
3.544037301173E+22
Height
31582651.43848