21541421 is an odd 8-digits composite number following 21541420
and preceding 21541422 . In scientific notation, it is written as 2.1541421 × 10^7.
The sum of its digits is 20. It has a total of 3 prime factors and 8 positive divisors.
There are 18552240 positive integers (up to 21541421) that are relatively prime to 21541421.
21541421 has 8 divisors, whose sum is 24736800
The reverse of 21541421 is 12414512
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty-one million five hundred forty-one thousand four hundred twenty-one
Scientific notation
2.1541421 × 10^7
Engineering notation
2.1541421 × 10^6
Prime Factorization
11 × 19 × 103069
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21541421
Product of the distinct prime numbers
The prime factorization of 21541421 is 11 × 19 × 103069.
Since it has a total of 3 prime factors.
2 , 3 , 39 , 34 , 631 , 556 , 4842 , 857 , 92494 , 90813 , 964049 , 341476 , 7259318 , 8614830 , 38372888 , 19942926 , 152990120 , 878333490 , 5065880348 , 5493435809
n×2
43082842
n×3
64624263
n×4
86165684
n×5
107707105
n÷2
10770710.5
n÷3
7180473.6666667
n÷3
5385355.25
n÷5
4308284.2
n2
464032818699241
n3
9.995926305417E+21
n4
2.1532645682996E+29
n5
4.6384378590126E+36
2 √n
4641.2736398536
3 √n
278.24334316518
4 √n
68.12689366068
5 √n
29.285650134777
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
-21541420
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 21541421 can be divided by 8 positive divisors.
The sum of these divisors (counting 21541421) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010001011001000101101
3
Ternary
1111112102021102
4
Quaternary
1102023020231
5
Quinary
21003311141
6
Senary
2045412445
8
Octal
122131055
10
Decimal
21541421
12
Duodecimal
726a125
16
Hexadecimal
148b22d
20
Vigesimal
6ecdb1
36
Base36
ctpgt
md5
62d119c897563e3b59946327352b28a7
sha1
2f6f19851d2c7de691963bc786d6425a8c397dd7
sha256
a6a3fac21410a636136d8b0a1def331fefa9e245b4129b443ffd874c64618d35
sha512
2a6cb3b1d29b516d0ba179e661735ac708108a97af700d41d3a55f83d0ae7f1959c72b37ac8a4e8ae9005c0057cc31b2009e37d12f75244a7fcdeb92a8b506f3
ripemd-160
158d4509fee7b51db27333a2ea2bbffd2254828f
Diameter
43082842
Circumference
135348739.92297
Area
1.4578020942501E+15
Volume
4.1870838195897E+22
Surface area
5.8312083770004E+15
Circumference
135348739.92297
Perimeter
86165684
Area
464032818699241
Diagonal
30464169.730989
Surface area
2784196912195446
Volume
9.995926305417E+21
Space diagonal
37310835.639231
Perimeter
64624263
Area
2.0093210459162E+14
Altitude
18655417.819616
Surface area
2.0093210459162E+14
Volume
1.1780312124669E+21
Height
10154723.243663