21551851 is an odd 8-digits composite number following 21551850
and preceding 21551852 . In scientific notation, it is written as 2.1551851 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 8 positive divisors.
There are 19720800 positive integers (up to 21551851) that are relatively prime to 21551851.
21551851 has 8 divisors, whose sum is 22617504
The reverse of 21551851 is 15815512
Previous prime number is 5177
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million five hundred fifty-one thousand eight hundred fifty-one
Scientific notation
2.1551851 × 10^7
Engineering notation
2.1551851 × 10^6
Prime Factorization
23 × 5177 × 181
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21551851
Product of the distinct prime numbers
The prime factorization of 21551851 is 23 × 5177 × 181.
Since it has a total of 3 prime factors.
3 , 8 , 94 , 58 , 718 , 980 , 736 , 5216 , 86249 , 78090 , 930082 , 931497 , 6801578 , 2764184 , 73617966 , 15435871 , 161454303 , 727965075 , 1224545331 , 2670658810
n×2
43103702
n×3
64655553
n×4
86207404
n×5
107759255
n÷2
10775925.5
n÷3
7183950.3333333
n÷3
5387962.75
n÷5
4310370.2
n2
464482281526201
n3
1.0010452923593E+22
n4
2.1574378985179E+29
n5
4.649678013061E+36
2 √n
4642.3971178692
3 √n
278.288242862
4 √n
68.135138642768
5 √n
29.288485511242
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
-21551850
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 21551851 can be divided by 8 positive divisors.
The sum of these divisors (counting 21551851) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010001101101011101011
3
Ternary
1111112221120201
4
Quaternary
1102031223223
5
Quinary
21004124401
6
Senary
2045533031
8
Octal
122155353
10
Decimal
21551851
12
Duodecimal
7274177
16
Hexadecimal
148daeb
20
Vigesimal
6edjcb
36
Base36
ctxij
md5
755116a9c82539b754aacf6cc5d064d7
sha1
dce6a6e45da8ace2dbb7bfef23ee523c4da5baef
sha256
f0d44f95ce21697a6fbeb46bd01d91110574215be33a447cacfebc21e5bd01eb
sha512
cb26b5c9d9e802fa3a19f36e01af01d749421a1ac00ad5269d361d7cfc8e6cba4a0f5d97d94ee09d93bd4d50b60e3924a7ffd5846e4a284d7f0477950dd04d00
ripemd-160
8d534c68eb0a6a5f3c2714279b9e35d2a19d91b4
Diameter
43103702
Circumference
135414273.54572
Area
1.4592141233653E+15
Volume
4.1931687151821E+22
Surface area
5.8368564934614E+15
Circumference
135414273.54572
Perimeter
86207404
Area
464482281526201
Diagonal
30478919.978444
Surface area
2786893689157206
Volume
1.0010452923593E+22
Space diagonal
37328900.929154
Perimeter
64655553
Area
2.0112672770472E+14
Altitude
18664450.464577
Surface area
2.0112672770472E+14
Volume
1.1797431908369E+21
Height
10159639.992815