21521641 is an odd 8-digits composite number following 21521640
and preceding 21521642 . In scientific notation, it is written as 2.1521641 × 10^7.
The sum of its digits is 22. It has a total of 3 prime factors and 8 positive divisors.
There are 21030912 positive integers (up to 21521641) that are relatively prime to 21521641.
21521641 has 8 divisors, whose sum is 22017960
The reverse of 21521641 is 14612512
Previous prime number is 73
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 22
Digital Root 4
Name
twenty-one million five hundred twenty-one thousand six hundred forty-one
Scientific notation
2.1521641 × 10^7
Engineering notation
2.1521641 × 10^6
Prime Factorization
113 × 73 × 2609
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21521641
Product of the distinct prime numbers
The prime factorization of 21521641 is 113 × 73 × 2609.
Since it has a total of 3 prime factors.
8 , 4 , 29 , 21 , 660 , 78 , 92 , 5243 , 65630 , 16742 , 373634 , 666773 , 421093 , 7504473 , 99177861 , 23575268 , 324399404 , 117700784 , 4847151855 , 160554828
n×2
43043282
n×3
64564923
n×4
86086564
n×5
107608205
n÷2
10760820.5
n÷3
7173880.3333333
n÷3
5380410.25
n÷5
4304328.2
n2
463181031332881
n3
9.968415874356E+21
n4
2.1453666778659E+29
n5
4.6171811454393E+36
2 √n
4639.1422698598
3 √n
278.15815319977
4 √n
68.111249216703
5 √n
29.280269960103
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
-21521640
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 21521641 can be divided by 8 positive divisors.
The sum of these divisors (counting 21521641) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010000110010011101001
3
Ternary
1111111102010211
4
Quaternary
1102012103221
5
Quinary
21002143031
6
Senary
2045141121
8
Octal
122062351
10
Decimal
21521641
12
Duodecimal
725a7a1
16
Hexadecimal
14864e9
20
Vigesimal
6ea421
36
Base36
cta7d
md5
a6fbdbe28416de528eda379e81c6b209
sha1
3d45951b0be7a1d424961123c2433af8f3bbceca
sha256
263e5d8ef401e975acd06fdaf1b244f8960e22be820c1c403612d4d1d8cae88c
sha512
2d6f747036618d437daabc44e1b8184386c8889b62aad72a9cc067fd28ebd4a5ee8f6528d0cd6eebe87b4c4c65321290e632fcab2501efb8ce15e8f727a60570
ripemd-160
83d2b3f825977694936b57b54501585d521b824f
Diameter
43043282
Circumference
135224458.51759
Area
1.4551261253175E+15
Volume
4.175560277174E+22
Surface area
5.8205045012701E+15
Circumference
135224458.51759
Perimeter
86086564
Area
463181031332881
Diagonal
30436196.586725
Surface area
2779086187997286
Volume
9.968415874356E+21
Space diagonal
37276575.674257
Perimeter
64564923
Area
2.0056326984268E+14
Altitude
18638287.837129
Surface area
2.0056326984268E+14
Volume
1.1747890770741E+21
Height
10145398.862242