67821421 is an odd 8-digits composite number following 67821420
and preceding 67821422 . In scientific notation, it is written as 6.7821421 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 65326560 positive integers (up to 67821421) that are relatively prime to 67821421.
67821421 has 8 divisors, whose sum is 70358400
The reverse of 67821421 is 12412876
Previous prime number is 41
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
sixty-seven million eight hundred twenty-one thousand four hundred twenty-one
Scientific notation
6.7821421 × 10^7
Engineering notation
6.7821421 × 10^6
Prime Factorization
79 × 41 × 20939
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
67821421
Product of the distinct prime numbers
The prime factorization of 67821421 is 79 × 41 × 20939.
Since it has a total of 3 prime factors.
3 , 2 , 19 , 26 , 241 , 607 , 9562 , 1692 , 8202 , 16348 , 521451 , 889308 , 1161437 , 8275022 , 14391615 , 22222929 , 928524512 , 644974349 , 5058298485 , 112984319
n×2
135642842
n×3
203464263
n×4
271285684
n×5
339107105
n÷2
33910710.5
n÷3
22607140.333333
n÷3
16955355.25
n÷5
13564284.2
n2
4599745146459241
n3
3.1196125207072E+23
n4
2.1157655412375E+31
n5
1.4349422550956E+39
2 √n
8235.3761905574
3 √n
407.80789407069
4 √n
90.748973495888
5 √n
36.836077412173
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
-67821420
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 67821421 can be divided by 8 positive divisors.
The sum of these divisors (counting 67821421) is 1, the average is 0.125.
Base
System
Value
2
Binary
100000010101101111101101101
3
Ternary
11201121200111111
4
Quaternary
10002231331231
5
Quinary
114330241141
6
Senary
10421352021
8
Octal
402557555
10
Decimal
67821421
12
Duodecimal
1a868611
16
Hexadecimal
40adf6d
20
Vigesimal
113hdb1
36
Base36
14dncd
md5
07c5a330ef123b60b1c194fa39f56385
sha1
9abd6a350f7c22b127b7c35a76efba9a7048476d
sha256
c8f27d7e3a57f49941a5f49392abbb78f90da36a27e8c77f33aa085359798921
sha512
691c4a17385ce1efb4735051f6ea70ee8297d35c2fc5057159446b10b5b10758fa053f8b0a3554f773e06955c38a8e34140ebe49ea28454d24f83083420f5f08
ripemd-160
a182c1f5f01b5b3b7a75f773d31c50ad04fa96d8
Diameter
135642842
Circumference
426134555.93924
Area
1.4450525560502E+16
Volume
1.3067402369467E+24
Surface area
5.7802102242007E+16
Circumference
426134555.93924
Perimeter
271285684
Area
4599745146459241
Diagonal
95913973.397615
Surface area
27598470878755446
Volume
3.1196125207072E+23
Space diagonal
117470147.01352
Perimeter
203464263
Area
1.9917480738839E+15
Altitude
58735073.506759
Surface area
1.9917480738839E+15
Volume
3.6764986134442E+22
Height
31971324.465872