66996821 is an odd 8-digits composite number following 66996820
and preceding 66996822 . In scientific notation, it is written as 6.6996821 × 10^7.
The sum of its digits is 47. It has a total of 2 prime factors and 4 positive divisors.
There are 66966432 positive integers (up to 66996821) that are relatively prime to 66996821.
66996821 has 4 divisors, whose sum is 67027212
The reverse of 66996821 is 12869966
Previous prime number is 27997
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 47
Digital Root 2
Name
sixty-six million nine hundred ninety-six thousand eight hundred twenty-one
Scientific notation
6.6996821 × 10^7
Engineering notation
6.6996821 × 10^6
Prime Factorization
27997 × 2393
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
66996821
Product of the distinct prime numbers
The prime factorization of 66996821 is 27997 × 2393.
Since it has a total of 2 prime factors.
5 , 1 , 96 , 88 , 149 , 271 , 8840 , 9921 , 59241 , 33438 , 536700 , 96695 , 9349197 , 2659605 , 31586552 , 85264286 , 384793404 , 795406465 , 9480580691 , 9645357205
n×2
133993642
n×3
200990463
n×4
267987284
n×5
334984105
n÷2
33498410.5
n÷3
22332273.666667
n÷3
16749205.25
n÷5
13399364.2
n2
4488574024106041
n3
3.0072019043828E+23
n4
2.0147296769879E+31
n5
1.3498048353255E+39
2 √n
8185.1585812371
3 √n
406.14838623082
4 √n
90.471866241595
5 √n
36.746065021962
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-66996820
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 66996821 can be divided by 4 positive divisors.
The sum of these divisors (counting 66996821) is 1, the average is 0.25.
Base
System
Value
2
Binary
11111111100100101001010101
3
Ternary
11200001210100202
4
Quaternary
3333210221111
5
Quinary
114122344241
6
Senary
10351550245
8
Octal
377445125
10
Decimal
66996821
12
Duodecimal
1a52b385
16
Hexadecimal
3fe4a55
20
Vigesimal
10iec11
36
Base36
13vz2t
md5
fc0376f602f7e44627ec5fc9bb874bf2
sha1
7647cb9402cac5b9b9285e13aaa5c82c7b140c3d
sha256
e1f3e85568f52a6fb444fe4a50a90dfdf6f14b1e50f054986a9b6c7fd95b608b
sha512
66f4b0f34b7e03e4bafdb293d4fd664a7d4964964baff0fcf469b48fac6bb4cd4a07335e335b1972e9da91720b4e07c2c1d5531d5bb744054cd9cd0f2ffe507e
ripemd-160
1999ba0aac5416579f892eb60b08e81df63f9982
Diameter
133993642
Circumference
420953441.33494
Area
1.4101271179226E+16
Volume
1.2596537880894E+24
Surface area
5.6405084716902E+16
Circumference
420953441.33494
Perimeter
267987284
Area
4488574024106041
Diagonal
94747812.894083
Surface area
26931444144636246
Volume
3.0072019043828E+23
Space diagonal
116041897.9176
Perimeter
200990463
Area
1.9436095658214E+15
Altitude
58020948.958799
Surface area
1.9436095658214E+15
Volume
3.5440214316437E+22
Height
31582604.298028