21461621 is an odd 8-digits composite number following 21461620
and preceding 21461622 . In scientific notation, it is written as 2.1461621 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 20332044 positive integers (up to 21461621) that are relatively prime to 21461621.
21461621 has 4 divisors, whose sum is 22591200
The reverse of 21461621 is 12616412
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty-one million four hundred sixty-one thousand six hundred twenty-one
Scientific notation
2.1461621 × 10^7
Engineering notation
2.1461621 × 10^6
Prime Factorization
19 × 1129559
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21461621
Product of the distinct prime numbers
The prime factorization of 21461621 is 19 × 1129559.
Since it has a total of 2 prime factors.
2 , 3 , 14 , 1 , 438 , 905 , 5644 , 2039 , 97275 , 84815 , 242745 , 857987 , 9859438 , 3313306 , 78743440 , 84920125 , 350945628 , 182048616 , 235093985 , 84632987
n×2
42923242
n×3
64384863
n×4
85846484
n×5
107308105
n÷2
10730810.5
n÷3
7153873.6666667
n÷3
5365405.25
n÷5
4292324.2
n2
460601175947641
n3
9.8852478703426E+21
n4
2.1215344328435E+29
n5
4.5531567936137E+36
2 √n
4632.6688852108
3 √n
277.89933470352
4 √n
68.063711955864
5 √n
29.263920226166
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
-21461620
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 21461621 can be divided by 4 positive divisors.
The sum of these divisors (counting 21461621) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001110111101001110101
3
Ternary
1111101100210212
4
Quaternary
1101313221311
5
Quinary
20443232441
6
Senary
2043555205
8
Octal
121675165
10
Decimal
21461621
12
Duodecimal
722bb05
16
Hexadecimal
1477a75
20
Vigesimal
6e2e11
36
Base36
crzw5
md5
f3e7e3ae0c2b0042065980a9b0b9e04c
sha1
6199f76401764c72ac380367a50278fc70eea8c7
sha256
3c6fba8c5a002937e27d86820992e8b2c1946e8705aa793fdf37d3420cc87549
sha512
77e4aaeac2e5b0f4f4730c10cab464d960fade7966d434e8b180ed26c91ed5464b9d60062d5dd1dc7bbb37813b60829cbd5d8e95cdeb55408207b3490f4f7631
ripemd-160
144ed644115bc507aa34f542d4e21b03d83b2853
Diameter
42923242
Circumference
134847341.73546
Area
1.4470212705919E+15
Volume
4.1407229451177E+22
Surface area
5.7880850823677E+15
Circumference
134847341.73546
Perimeter
85846484
Area
460601175947641
Diagonal
30351315.488711
Surface area
2763607055685846
Volume
9.8852478703426E+21
Space diagonal
37172617.984787
Perimeter
64384863
Area
1.9944615969182E+14
Altitude
18586308.992394
Surface area
1.9944615969182E+14
Volume
1.1649876338049E+21
Height
10117105.162904