21551009 is an odd 8-digits composite number following 21551008
and preceding 21551010 . In scientific notation, it is written as 2.1551009 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 21468804 positive integers (up to 21551009) that are relatively prime to 21551009.
21551009 has 4 divisors, whose sum is 21633216
The reverse of 21551009 is 90015512
Previous prime number is 263
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty-one million five hundred fifty-one thousand nine
Scientific notation
2.1551009 × 10^7
Engineering notation
2.1551009 × 10^6
Prime Factorization
263 × 81943
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21551009
Product of the distinct prime numbers
The prime factorization of 21551009 is 263 × 81943.
Since it has a total of 2 prime factors.
6 , 6 , 74 , 57 , 772 , 31 , 5254 , 8351 , 15548 , 10491 , 842617 , 67558 , 3041097 , 2590609 , 56060902 , 33726491 , 314820596 , 408661088 , 8084969394 , 9965679403
n×2
43102018
n×3
64653027
n×4
86204036
n×5
107755045
n÷2
10775504.5
n÷3
7183669.6666667
n÷3
5387752.25
n÷5
4310201.8
n2
464445988918081
n3
1.0009279687187E+22
n4
2.1571007662209E+29
n5
4.6487698026734E+36
2 √n
4642.306431075
3 √n
278.2846187069
4 √n
68.134473147409
5 √n
29.288256655816
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
-21551008
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 21551009 can be divided by 4 positive divisors.
The sum of these divisors (counting 21551009) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010001101011110100001
3
Ternary
1111112220102112
4
Quaternary
1102031132201
5
Quinary
21004113014
6
Senary
2045525105
8
Octal
122153641
10
Decimal
21551009
12
Duodecimal
7273795
16
Hexadecimal
148d7a1
20
Vigesimal
6edha9
36
Base36
ctwv5
md5
eb73b316335f52b38630f0328386b5b1
sha1
2b136bf0b92d7b0d257e3a0b60ec2ba52631b2ac
sha256
24a45559a8bb41d3295689f94f4dc51ddd9a5276cdfc5cfd02d836b8d4786916
sha512
2093c35a80f79aaece335087d6860e4ff302c6c9e6824b89fcc8753891cf599866516be88c9fb85339f695c714323e88482ba1916db94cd72af0c5e876835b70
ripemd-160
6ece56d25dea1d2ad47022893ada6ba1ad950cbd
Diameter
43102018
Circumference
135408983.1037
Area
1.4591001067743E+15
Volume
4.1926772710658E+22
Surface area
5.8364004270972E+15
Circumference
135408983.1037
Perimeter
86204036
Area
464445988918081
Diagonal
30477729.210625
Surface area
2786675933508486
Volume
1.0009279687187E+22
Space diagonal
37327442.542374
Perimeter
64653027
Area
2.0111101254442E+14
Altitude
18663721.271187
Surface area
2.0111101254442E+14
Volume
1.1796049236005E+21
Height
10159243.070208