21371780 is an even 8-digits composite number following 21371779
and preceding 21371781 . In scientific notation, it is written as 2.1371780 × 10^7.
The sum of its digits is 29. It has a total of 4 prime factors and 12 positive divisors.
There are 8548704 positive integers (up to 21371780) that are relatively prime to 21371780.
21371780 has 12 divisors, whose sum is 44880780
The reverse of 21371780 is 08717312
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-one million three hundred seventy-one thousand seven hundred eighty
Scientific notation
2.1371780 × 10^7
Engineering notation
2.1371780 × 10^6
Prime Factorization
2 × 2 × 5 × 1068589
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10685890
Product of the distinct prime numbers
The prime factorization of 21371780 is 2 × 2 × 5 × 1068589.
Since it has a total of 4 prime factors.
1 , 9 , 56 , 56 , 864 , 978 , 1351 , 7277 , 63002 , 53240 , 10933 , 315784 , 8269947 , 2514518 , 67305224 , 9940311 , 202135484 , 258333624 , 4050306220 , 7006853839
n×2
42743560
n×3
64115340
n×4
85487120
n×5
106858900
n÷2
10685890
n÷3
7123926.6666667
n÷3
5342945
n÷5
4274356
n2
456752980368400
n3
9.7616242107778E+21
n4
2.0862328507542E+29
n5
4.4586509515091E+36
2 √n
4622.9622537936
3 √n
277.51101868971
4 √n
67.99236908502
5 √n
29.239378620091
1 , 2 , 4 , 5 , 10 , 20 , 1068589 , 2137178 , 4274356 , 5342945 , 10685890 , 21371780
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21371779
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21371780 can be divided by 12 positive divisors.
The sum of these divisors (counting 21371780) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010001100001101110000100
3
Ternary
1111012210120102
4
Quaternary
1101201232010
5
Quinary
20432344110
6
Senary
2042023232
8
Octal
121415604
10
Decimal
21371780
12
Duodecimal
71a7b18
16
Hexadecimal
1461b84
20
Vigesimal
6db990
36
Base36
cq2kk
md5
4ec505eea50b1749567c2485235a0f4a
sha1
28352cdc451ea62cd1eed3a72f0edb73b8576a70
sha256
a473a41eccf7dc27ed4f75613fcde58facd3a6891044f45b288d6d3186ee8034
sha512
f0071f90cd7ccb0e2335814790e16c98d7a0678b36e07d60fe7c57b3e8bfe96fc23336f31ed161c2a57bd1c8048814daeab6f15edb022b384c8dca72f63bd5e7
ripemd-160
cbe574fc75b62e57e197ccf52666f083ae4e3817
Diameter
42743560
Circumference
134282854.08427
Area
1.4349318076306E+15
Volume
4.0889395876912E+22
Surface area
5.7397272305224E+15
Circumference
134282854.08427
Perimeter
85487120
Area
456752980368400
Diagonal
30224261.128054
Surface area
2740517882210400
Volume
9.7616242107778E+21
Space diagonal
37017008.808184
Perimeter
64115340
Area
1.9777984212664E+14
Altitude
18508504.404092
Surface area
1.9777984212664E+14
Volume
1.150418445806E+21
Height
10074753.709351