21552989 is an odd 8-digits composite number following 21552988
and preceding 21552990 . In scientific notation, it is written as 2.1552989 × 10^7.
The sum of its digits is 41. It has a total of 2 prime factors and 4 positive divisors.
There are 21540156 positive integers (up to 21552989) that are relatively prime to 21552989.
21552989 has 4 divisors, whose sum is 21565824
The reverse of 21552989 is 98925512
Previous prime number is 1987
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 41
Digital Root 5
Name
twenty-one million five hundred fifty-two thousand nine hundred eighty-nine
Scientific notation
2.1552989 × 10^7
Engineering notation
2.1552989 × 10^6
Prime Factorization
1987 × 10847
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21552989
Product of the distinct prime numbers
The prime factorization of 21552989 is 1987 × 10847.
Since it has a total of 2 prime factors.
7 , 1 , 6 , 84 , 899 , 425 , 9727 , 2239 , 58414 , 8570 , 867215 , 422811 , 7501732 , 6641873 , 45515467 , 78444200 , 476304632 , 760422523 , 1242212073 , 8492030195
n×2
43105978
n×3
64658967
n×4
86211956
n×5
107764945
n÷2
10776494.5
n÷3
7184329.6666667
n÷3
5388247.25
n÷5
4310597.8
n2
464531334834121
n3
1.0012038749835E+22
n4
2.1578936104277E+29
n5
4.6509057248719E+36
2 √n
4642.5196822415
3 √n
278.29314091687
4 √n
68.136038058002
5 √n
29.288794808041
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
-21552988
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 21552989 can be divided by 4 positive divisors.
The sum of these divisors (counting 21552989) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010001101111101011101
3
Ternary
1111120000010212
4
Quaternary
1102031331131
5
Quinary
21004143424
6
Senary
2045542205
8
Octal
122157535
10
Decimal
21552989
12
Duodecimal
7274965
16
Hexadecimal
148df5d
20
Vigesimal
6ee299
36
Base36
ctye5
md5
fbe2bfec8df6a3f9c81b190da8b234cb
sha1
ab5f62c36c210de56c282b15185c55d7f9a48697
sha256
b833d941a24b5ffe274fcf53b8913898ecee7fe94010ec665c719941099d58ed
sha512
f055ba11e7869c54d1cfc49a404da0c392792f2e0a432c6a6cd085763968cd36a60c092542698a6a9d4c982e4ef8d3e04e9224d885143ee651dd15ed2d854fb4
ripemd-160
85f05172a748ffddb7c147779151db7b46706978
Diameter
43105978
Circumference
135421423.8106
Area
1.4593682288771E+15
Volume
4.1938329845251E+22
Surface area
5.8374729155085E+15
Circumference
135421423.8106
Perimeter
86211956
Area
464531334834121
Diagonal
30480529.353478
Surface area
2787188009004726
Volume
1.0012038749835E+22
Space diagonal
37330872.002973
Perimeter
64658967
Area
2.0114796841012E+14
Altitude
18665436.001487
Surface area
2.0114796841012E+14
Volume
1.1799300822518E+21
Height
10160176.451159