21293821 is an odd 8-digits composite number following 21293820
and preceding 21293822 . In scientific notation, it is written as 2.1293821 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 21216672 positive integers (up to 21293821) that are relatively prime to 21293821.
21293821 has 4 divisors, whose sum is 21370972
The reverse of 21293821 is 12839212
Previous prime number is 277
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million two hundred ninety-three thousand eight hundred twenty-one
Scientific notation
2.1293821 × 10^7
Engineering notation
2.1293821 × 10^6
Prime Factorization
277 × 76873
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21293821
Product of the distinct prime numbers
The prime factorization of 21293821 is 277 × 76873.
Since it has a total of 2 prime factors.
5 , 6 , 81 , 3 , 18 , 604 , 2673 , 8627 , 40952 , 55135 , 485173 , 541447 , 2688035 , 3786762 , 79609536 , 37304008 , 452843367 , 611022755 , 6489592989 , 2791508192
n×2
42587642
n×3
63881463
n×4
85175284
n×5
106469105
n÷2
10646910.5
n÷3
7097940.3333333
n÷3
5323455.25
n÷5
4258764.2
n2
453426812780041
n3
9.6551893879387E+21
n4
2.0559587454787E+29
n5
4.3779217509607E+36
2 √n
4614.5228355703
3 √n
277.17317690797
4 √n
67.930279224881
5 √n
29.218015813639
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
-21293820
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 21293821 can be divided by 4 positive divisors.
The sum of these divisors (counting 21293821) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001001110101011111101
3
Ternary
1111001211122001
4
Quaternary
1101032223331
5
Quinary
20422400241
6
Senary
2040222301
8
Octal
121165375
10
Decimal
21293821
12
Duodecimal
716a991
16
Hexadecimal
144eafd
20
Vigesimal
6d1eb1
36
Base36
coef1
md5
c178701bff855a13e63c1744a5bc4438
sha1
b7399a40fa46f83d60f1ffd9ec79e0006ee725b0
sha256
6094610fa6ccc3b40c6a0bfb8336294d24afc153b9f2ac3928f2e8c4b406bfc7
sha512
3555339c1605229706e0ef24119c2816962333982c5adfac9c926b3c35feb5051b6a5ee036091e71ba6edc6dd5af7abe9f2bb5c95669e400da5a7fb06f396352
ripemd-160
8f1de6410ac71c1df7e02eca4a25f338b3ab7681
Diameter
42587642
Circumference
133793023.24091
Area
1.4244823439704E+15
Volume
4.0443562733555E+22
Surface area
5.6979293758816E+15
Circumference
133793023.24091
Perimeter
85175284
Area
453426812780041
Diagonal
30114010.452945
Surface area
2720560876680246
Volume
9.6551893879387E+21
Space diagonal
36881979.859277
Perimeter
63881463
Area
1.9633956931226E+14
Altitude
18440989.929639
Surface area
1.9633956931226E+14
Volume
1.137874981642E+21
Height
10038003.484315