21490217 is an odd 8-digits composite number following 21490216
and preceding 21490218 . In scientific notation, it is written as 2.1490217 × 10^7.
The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors.
There are 18420180 positive integers (up to 21490217) that are relatively prime to 21490217.
21490217 has 4 divisors, whose sum is 24560256
The reverse of 21490217 is 71209412
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million four hundred ninety thousand two hundred seventeen
Scientific notation
2.1490217 × 10^7
Engineering notation
2.1490217 × 10^6
Prime Factorization
7 × 3070031
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21490217
Product of the distinct prime numbers
The prime factorization of 21490217 is 7 × 3070031.
Since it has a total of 2 prime factors.
9 , 6 , 78 , 40 , 813 , 74 , 5434 , 5651 , 3977 , 67461 , 491344 , 17433 , 9140326 , 5711537 , 4238425 , 33117795 , 183270299 , 254262998 , 3646843608 , 8342998654
n×2
42980434
n×3
64470651
n×4
85960868
n×5
107451085
n÷2
10745108.5
n÷3
7163405.6666667
n÷3
5372554.25
n÷5
4298043.4
n2
461829426707089
n3
9.9248145969209E+21
n4
2.132864193726E+29
n5
4.5835714354701E+36
2 √n
4635.7541996961
3 √n
278.02270659725
4 √n
68.086373083724
5 √n
29.271714468857
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
-21490216
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 21490217 can be divided by 4 positive divisors.
The sum of these divisors (counting 21490217) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001111110101000101001
3
Ternary
1111102211000222
4
Quaternary
1101332220221
5
Quinary
21000141332
6
Senary
2044335425
8
Octal
121765051
10
Decimal
21490217
12
Duodecimal
7244575
16
Hexadecimal
147ea29
20
Vigesimal
6e65ah
36
Base36
cslyh
md5
bb8d7a18f77061997af83414533f8968
sha1
42f9d1ba4bb16956a30de79f9781069d5b46bec8
sha256
ee28faeeaa48c736fe1d1868d30eb391684f791b088dfeb3b7b25959fa4229ef
sha512
40eda46f000e331f86c4c9009f3f6ef1fc0e7e2b1d1fa3b62b19a047fb9cac798fff23126ec2a1e7ac1c823e9258ff72e3612855e2bce5f3807c8ef2f11dd854
ripemd-160
01d895932185316afc1d174fc8dc60370106ed3f
Diameter
42980434
Circumference
135027015.7025
Area
1.4508799341546E+15
Volume
4.1572966167903E+22
Surface area
5.8035197366183E+15
Circumference
135027015.7025
Perimeter
85960868
Area
461829426707089
Diagonal
30391756.339741
Surface area
2770976560242534
Volume
9.9248145969209E+21
Space diagonal
37222147.70968
Perimeter
64470651
Area
1.9997800787177E+14
Altitude
18611073.85484
Surface area
1.9997800787177E+14
Volume
1.1696506172503E+21
Height
10130585.44658