21551090 is an even 8-digits composite number following 21551089
and preceding 21551091 . In scientific notation, it is written as 2.1551090 × 10^7.
The sum of its digits is 23. It has a total of 4 prime factors and 16 positive divisors.
There are 7836720 positive integers (up to 21551090) that are relatively prime to 21551090.
21551090 has 16 divisors, whose sum is 42318720
The reverse of 21551090 is 09015512
Previous prime number is 11
Is Prime? no
Number parity even
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty-one million five hundred fifty-one thousand ninety
Scientific notation
2.1551090 × 10^7
Engineering notation
2.1551090 × 10^6
Prime Factorization
2 × 5 × 11 × 195919
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21551090
Product of the distinct prime numbers
The prime factorization of 21551090 is 2 × 5 × 11 × 195919.
Since it has a total of 4 prime factors.
1 , 5 , 53 , 27 , 360 , 575 , 1760 , 8929 , 86986 , 81392 , 295830 , 194281 , 1810981 , 7974272 , 46645119 , 26110848 , 189594531 , 885405221 , 8632407208 , 1680363605
n×2
43102180
n×3
64653270
n×4
86204360
n×5
107755450
n÷2
10775545
n÷3
7183696.6666667
n÷3
5387772.5
n÷5
4310218
n2
464449480188100
n3
1.0009392547987E+22
n4
2.15713319647E+29
n5
4.6488571659112E+36
2 √n
4642.3151551785
3 √n
278.284967353
4 √n
68.134537168594
5 √n
29.288278671911
1 , 2 , 5 , 10 , 11 , 22 , 55 , 110 , 195919 , 391838 , 979595 , 1959190 , 2155109 , 4310218 , 10775545 , 21551090
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21551089
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21551090 can be divided by 16 positive divisors.
The sum of these divisors (counting 21551090) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010010001101011111110010
3
Ternary
1111112220112112
4
Quaternary
1102031133302
5
Quinary
21004113330
6
Senary
2045525322
8
Octal
122153762
10
Decimal
21551090
12
Duodecimal
7273842
16
Hexadecimal
148d7f2
20
Vigesimal
6edhea
36
Base36
ctwxe
md5
6a71c99920cbdf2ddb7e0ddb2742cb6c
sha1
67c35ad71dd3721cf800fc6eb1d3b0c42655a260
sha256
6b427d266786d7f7d923a54df5350ecbe0d21828a9e47fdbe4ecd14460a251bf
sha512
58dee2a926f59d76f2dd59ebc17869283aaad785c6e047467c2db60d703ff0f0fd625862df14bf1dfc7c38b167fa84d85b1ebb084ce0665b70ce40666e0a1978
ripemd-160
0ce3c11ee3f2645d1c78abc787ad077b40b19c2f
Diameter
43102180
Circumference
135409492.0417
Area
1.4591110749225E+15
Volume
4.192724546087E+22
Surface area
5.8364442996901E+15
Circumference
135409492.0417
Perimeter
86204360
Area
464449480188100
Diagonal
30477843.761923
Surface area
2786696881128600
Volume
1.0009392547987E+22
Space diagonal
37327582.83849
Perimeter
64653270
Area
2.0111252430869E+14
Altitude
18663791.419245
Surface area
2.0111252430869E+14
Volume
1.1796182243733E+21
Height
10159281.253974