21379940 is an even 8-digits composite number following 21379939
and preceding 21379941 . In scientific notation, it is written as 2.1379940 × 10^7.
The sum of its digits is 35. It has a total of 5 prime factors and 24 positive divisors.
There are 8101728 positive integers (up to 21379940) that are relatively prime to 21379940.
21379940 has 24 divisors, whose sum is 47261760
The reverse of 21379940 is 04997312
Previous prime number is 19
Is Prime? no Number parity even Number length 8 Sum of Digits 35 Digital Root 8
Name
twenty-one million three hundred seventy-nine thousand nine hundred forty
Scientific notation
2.1379940 × 10^7
Engineering notation
2.1379940 × 10^6
Prime Factorization
2 × 2 × 5 × 19 × 56263
Composite number
ω Distinct Factors
4 Total number of distinct prime factors
Ω Total Factors
5 Total number of prime factors
rad Radical
10689970 Product of the distinct prime numbers
The prime factorization of 21379940 is 2 × 2 × 5 × 19 × 56263.
Since it has a total of 5 prime factors.
4 , 5 , 87 , 78 , 338 , 53 , 9509 , 2598 , 34864 , 93566 , 448661 , 226870 , 3615016 , 8484814 , 80491026 , 14484289 , 904345599 , 156427639 , 5437482082 , 5595761739
n×2
42759880
n×3
64139820
n×4
85519760
n×5
106899700
n÷2
10689970
n÷3
7126646.6666667
n÷3
5344985
n÷5
4275988
n2
457101834403600
n3
9.7728097934389E+21
n4
2.0894208701514E+29
n5
4.4671692838584E+36
2 √n4623.8447205762
3 √n277.54633319901
4 √n67.998858229945
5 √n29.241611067727
1 , 2 , 4 , 5 , 10 , 19 , 20 , 38 , 76 , 95 , 190 , 380 , 56263 , 112526 , 225052 , 281315 , 562630 , 1068997 , 1125260 , 2137994 , 4275988 , 5344985 , 10689970 , 21379940
24 divisors
τ Total Divisors
24 Total number of the positive divisors of n
σ Sum of Divisors
1 Sum of all the positive divisors of n
s Aliquot Sum
-21379939 Sum of the proper positive divisors of n
A Arithmetic Mean
0.041666666666667 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
24 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21379940 can be divided by 24 positive divisors.
The sum of these divisors (counting 21379940) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1010001100011101101100100
3
Ternary
1111020012202122
4
Quaternary
1101203231210
5
Quinary
20433124230
6
Senary
2042125112
8
Octal
121435544
10
Decimal
21379940
12
Duodecimal
71b0798
16
Hexadecimal
1463b64
20
Vigesimal
6dc9h0
36
Base36
cq8v8
md5
f1cbda53c336f664f2c2272257f58e3b
sha1
f10cc64aa8c97ec3e96bb9043d9f6736a4e81aba
sha256
c6039231934b3a460a22c7a8d900e6c74632b1f1ff27fa3c440f16c095976912
sha512
c20bae1df5419a291e5fdd5092126ba7dced55d9675e884243a6618c6dfc027b2d84f106eba23ae7faacc632665b5a392efaf90876f8e59b9a80cbb1209f3078
ripemd-160
46cd3d71859a44b27daac58943bbe804d288e99a
Diameter
42759880
Circumference
134334124.87638
Area
1.4360277649048E+15
Volume
4.0936249935997E+22
Surface area
5.7441110596191E+15
Circumference
134334124.87638
Perimeter
85519760
Area
457101834403600
Diagonal
30235801.110723
Surface area
2742611006421600
Volume
9.7728097934389E+21
Space diagonal
37031142.342774
Perimeter
64139820
Area
1.9793090035499E+14
Altitude
18515571.171387
Surface area
1.9793090035499E+14
Volume
1.1517366793645E+21
Height
10078600.370241