21354909 is an odd 8-digits composite number following 21354908
and preceding 21354910 . In scientific notation, it is written as 2.1354909 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 14041440 positive integers (up to 21354909) that are relatively prime to 21354909.
21354909 has 8 divisors, whose sum is 28863552
The reverse of 21354909 is 90945312
Previous prime number is 73
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-one million three hundred fifty-four thousand nine hundred nine
Scientific notation
2.1354909 × 10^7
Engineering notation
2.1354909 × 10^6
Prime Factorization
3 × 73 × 97511
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21354909
Product of the distinct prime numbers
The prime factorization of 21354909 is 3 × 73 × 97511.
Since it has a total of 3 prime factors.
10 , 6 , 33 , 36 , 91 , 706 , 5516 , 3901 , 2021 , 42681 , 790184 , 157403 , 7368225 , 6032312 , 29076483 , 48821863 , 301076716 , 109546563 , 1989719157 , 8282927313
n×2
42709818
n×3
64064727
n×4
85419636
n×5
106774545
n÷2
10677454.5
n÷3
7118303
n÷3
5338727.25
n÷5
4270981.8
n2
456032138398281
n3
9.7385248165707E+21
n4
2.0796531125211E+29
n5
4.4410802969455E+36
2 √n
4621.1371977036
3 √n
277.43797656116
4 √n
67.978946723994
5 √n
29.234760816658
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
-21354908
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 21354909 can be divided by 8 positive divisors.
The sum of these divisors (counting 21354909) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001011101100110011101
3
Ternary
1111011221102120
4
Quaternary
1101131212131
5
Quinary
20431324114
6
Senary
2041413153
8
Octal
121354635
10
Decimal
21354909
12
Duodecimal
719a1b9
16
Hexadecimal
145d99d
20
Vigesimal
6d9759
36
Base36
cppjx
md5
2317c9938ac2354a7dd0ae9aa818e7cb
sha1
a22bf512dc95111c4b95c843d1d41289fbccf1df
sha256
61160755fc0444e1edd68c395d80a59118a34d24d3033c93a09db2cb60406f4f
sha512
d6da1f785c3c819d18875a267e61646dfb94023229bbc31b18157506f15fb0ec7c326fa5188494254582977a666094be7cd6b0dd8aa4f0cb33bca37399bd9dec
ripemd-160
c19ab12758579bb9de4a68721294075d245e67c6
Diameter
42709818
Circumference
134176850.46496
Area
1.4326672157929E+15
Volume
4.0792637360721E+22
Surface area
5.7306688631715E+15
Circumference
134176850.46496
Perimeter
85419636
Area
456032138398281
Diagonal
30200401.931043
Surface area
2736192830389686
Volume
9.7385248165707E+21
Space diagonal
36987787.37901
Perimeter
64064727
Area
1.9746770839753E+14
Altitude
18493893.689505
Surface area
1.9746770839753E+14
Volume
1.1476961560918E+21
Height
10066800.643681