21893209 is an odd 8-digits composite number following 21893208
and preceding 21893210 . In scientific notation, it is written as 2.1893209 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 20173440 positive integers (up to 21893209) that are relatively prime to 21893209.
21893209 has 8 divisors, whose sum is 23618952
The reverse of 21893209 is 90239812
Previous prime number is 761
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-one million eight hundred ninety-three thousand two hundred nine
Scientific notation
2.1893209 × 10^7
Engineering notation
2.1893209 × 10^6
Prime Factorization
13 × 761 × 2213
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21893209
Product of the distinct prime numbers
The prime factorization of 21893209 is 13 × 761 × 2213.
Since it has a total of 3 prime factors.
8 , 10 , 64 , 29 , 137 , 282 , 9758 , 7888 , 74348 , 87396 , 890680 , 516861 , 4826402 , 6750240 , 93907552 , 13841833 , 426547262 , 733474389 , 736280530 , 9561471674
n×2
43786418
n×3
65679627
n×4
87572836
n×5
109466045
n÷2
10946604.5
n÷3
7297736.3333333
n÷3
5473302.25
n÷5
4378641.8
n2
479312600317681
n3
1.0493690935088E+22
n4
2.297405688233E+29
n5
5.0297582890273E+36
2 √n
4679.0179525195
3 √n
279.74981478674
4 √n
68.403347524222
5 √n
29.380682808804
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
-21893208
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 21893209 can be divided by 8 positive divisors.
The sum of these divisors (counting 21893209) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010011100001000001011001
3
Ternary
1112012021211121
4
Quaternary
1103201001121
5
Quinary
21101040314
6
Senary
2101125241
8
Octal
123410131
10
Decimal
21893209
12
Duodecimal
73b9821
16
Hexadecimal
14e1059
20
Vigesimal
6ggd09
36
Base36
d18wp
md5
8d8e66323c4073a3549af8e4a2770281
sha1
33e4d905ca8ea8848fcdbe7e6b636f6d51476f43
sha256
357d4f4bc8509887ab910c2090d69ff8d050db1f475a34a97a2602fa2ea0db05
sha512
a6a1e7d3ccd9fc8cd0cdb95eff18f1a97ff170165cf090a1345bd5bfaa46c635cf27cdaaac18b2e1e93742c69921fc2fdd0c69e6c9151f7aa2dd70e0fa5a27fc
ripemd-160
9f4da439f1ece001d98974e0421d122a9913fae6
Diameter
43786418
Circumference
137559089.11581
Area
1.505804943931E+15
Volume
4.3955869800954E+22
Surface area
6.0232197757242E+15
Circumference
137559089.11581
Perimeter
87572836
Area
479312600317681
Diagonal
30961673.091669
Surface area
2875875601906086
Volume
1.0493690935088E+22
Space diagonal
37920150.328724
Perimeter
65679627
Area
2.0754844411454E+14
Altitude
18960075.164362
Surface area
2.0754844411454E+14
Volume
1.2366933366461E+21
Height
10320557.697223