21054909 is an odd 8-digits composite number following 21054908
and preceding 21054910 . In scientific notation, it is written as 2.1054909 × 10^7.
The sum of its digits is 30. It has a total of 2 prime factors and 4 positive divisors.
There are 14036604 positive integers (up to 21054909) that are relatively prime to 21054909.
21054909 has 4 divisors, whose sum is 28073216
The reverse of 21054909 is 90945012
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million fifty-four thousand nine hundred nine
Scientific notation
2.1054909 × 10^7
Engineering notation
2.1054909 × 10^6
Prime Factorization
3 × 7018303
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21054909
Product of the distinct prime numbers
The prime factorization of 21054909 is 3 × 7018303.
Since it has a total of 2 prime factors.
2 , 10 , 81 , 30 , 563 , 374 , 655 , 708 , 35355 , 28908 , 219163 , 999440 , 8229057 , 594873 , 59019663 , 60789088 , 325633095 , 241813598 , 3133963909 , 4445274232
n×2
42109818
n×3
63164727
n×4
84219636
n×5
105274545
n÷2
10527454.5
n÷3
7018303
n÷3
5263727.25
n÷5
4210981.8
n2
443309192998281
n3
9.3338347174422E+21
n4
1.9652304059679E+29
n5
4.1377747361687E+36
2 √n
4588.5628469053
3 √n
276.13266831257
4 √n
67.738931545348
5 √n
29.152155626428
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
-21054908
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 21054909 can be divided by 4 positive divisors.
The sum of these divisors (counting 21054909) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000010100010110111101
3
Ternary
1110121200220110
4
Quaternary
1100110112331
5
Quinary
20342224114
6
Senary
2031140233
8
Octal
120242675
10
Decimal
21054909
12
Duodecimal
7074679
16
Hexadecimal
14145bd
20
Vigesimal
6bbh59
36
Base36
cja2l
md5
9a50191aa32f639d5648fe90a75b48dc
sha1
4a968df4ec95e0cf61d63f38bddff812d85f90f8
sha256
7edf097929154488d6cfb5fbbf0c4f8ec6b6a69b1b9a627c65ba8cd9f00727c7
sha512
b5c97aaf03514d8a87fd9fdbdc0b96fa587d16a6f979e6b92d26f64147ebe2544e67d694f4c55ffd644eaabc2d11659b686ca9cc90041aed602e45477c3814a9
ripemd-160
9fd798d8fad7a4b59ec5fe2b3fa64c65ca791da9
Diameter
42109818
Circumference
132291894.8728
Area
1.3926969039922E+15
Volume
3.9097475437517E+22
Surface area
5.5707876159689E+15
Circumference
132291894.8728
Perimeter
84219636
Area
443309192998281
Diagonal
29776137.862331
Surface area
2659855157989686
Volume
9.3338347174422E+21
Space diagonal
36468172.136739
Perimeter
63164727
Area
1.9195851143384E+14
Altitude
18234086.06837
Surface area
1.9195851143384E+14
Volume
1.1000029705296E+21
Height
9925379.2874438