20641381 is an odd 8-digits composite number following 20641380
and preceding 20641382 . In scientific notation, it is written as 2.0641381 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 19902000 positive integers (up to 20641381) that are relatively prime to 20641381.
20641381 has 8 divisors, whose sum is 21385728
The reverse of 20641381 is 18314602
Previous prime number is 311
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty million six hundred forty-one thousand three hundred eighty-one
Scientific notation
2.0641381 × 10^7
Engineering notation
2.0641381 × 10^6
Prime Factorization
31 × 311 × 2141
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20641381
Product of the distinct prime numbers
The prime factorization of 20641381 is 31 × 311 × 2141.
Since it has a total of 3 prime factors.
3 , 4 , 79 , 36 , 562 , 649 , 3754 , 7401 , 22451 , 14070 , 347365 , 140373 , 3179744 , 8200174 , 65048543 , 77834398 , 359751249 , 126799449 , 3803454970 , 2169184346
n×2
41282762
n×3
61924143
n×4
82565524
n×5
103206905
n÷2
10320690.5
n÷3
6880460.3333333
n÷3
5160345.25
n÷5
4128276.2
n2
426066609587161
n3
8.7946032198668E+21
n4
1.815327558051E+29
n5
3.747086776553E+36
2 √n
4543.2786619357
3 √n
274.31291173502
4 √n
67.403847530654
5 √n
29.036732925167
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
-20641380
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 20641381 can be divided by 8 positive divisors.
The sum of these divisors (counting 20641381) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110101111011001100101
3
Ternary
1102211200122121
4
Quaternary
1032233121211
5
Quinary
20241011011
6
Senary
2014225541
8
Octal
116573145
10
Decimal
20641381
12
Duodecimal
6ab52b1
16
Hexadecimal
13af665
20
Vigesimal
690391
36
Base36
caezp
md5
2a6505347185476fd0d76a160afc530b
sha1
a68141c9f481529c9acd97710ef0578f667180f9
sha256
4dc3c0493707b1992b7e2da7efa4aa19c990b0215cc8f0ac730d143382d514f6
sha512
3a1045ee57e56a64d0124458ab9ec5114e071cd1bfc2e301fc5b46ef53945701e1d8e9e147dcf7c5ad4fe1f1b8186585f8e789cddf7ddf32e09a736ad5618bce
ripemd-160
cfd3bbc7c6ad3ded5b70324f16ccb842db407a65
Diameter
41282762
Circumference
129693621.8191
Area
1.3385277306189E+15
Volume
3.6838747822361E+22
Surface area
5.3541109224757E+15
Circumference
129693621.8191
Perimeter
82565524
Area
426066609587161
Diagonal
29191320.95631
Surface area
2556399657522966
Volume
8.7946032198668E+21
Space diagonal
35751920.630387
Perimeter
61924143
Area
1.8449225380339E+14
Altitude
17875960.315193
Surface area
1.8449225380339E+14
Volume
1.0364539291021E+21
Height
9730440.3187701