21053909 is an odd 8-digits prime number following 21053908
and preceding 21053910 . In scientific notation, it is written as 2.1053909 × 10^7.
The sum of its digits is 29. It has a total of 1 prime factors and 2 positive divisors.
There are 21053908 positive integers (up to 21053909) that are relatively prime to 21053909.
21053909 has 2 divisors, whose sum is 21053910
The reverse of 21053909 is 90935012
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-one million fifty-three thousand nine hundred nine
Scientific notation
2.1053909 × 10^7
Engineering notation
2.1053909 × 10^6
Prime Factorization
21053909
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21053909
Product of the distinct prime numbers
The prime factorization of 21053909 is 21053909.
Since it has a total of 1 prime factors.
7 , 4 , 48 , 100 , 308 , 929 , 420 , 7767 , 11122 , 32717 , 214388 , 544074 , 3519265 , 2734592 , 82483304 , 45370069 , 997750980 , 992413618 , 2889430540 , 9605146757
n×2
42107818
n×3
63161727
n×4
84215636
n×5
105269545
n÷2
10526954.5
n÷3
7017969.6666667
n÷3
5263477.25
n÷5
4210781.8
n2
443267084180281
n3
9.332504853027E+21
n4
1.9648570791769E+29
n5
4.1367922142996E+36
2 √n
4588.4538790316
3 √n
276.12829661569
4 √n
67.738127218219
5 √n
29.151878705644
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21053910
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10526955
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4588.4539880008
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999050058
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21053909 can be divided by 2 positive divisors.
The sum of these divisors (counting 21053909) is 21053910, the average is 10526955.
Base
System
Value
2
Binary
1010000010100000111010101
3
Ternary
1110121122112102
4
Quaternary
1100110013111
5
Quinary
20342211114
6
Senary
2031131445
8
Octal
120240725
10
Decimal
21053909
12
Duodecimal
7073b85
16
Hexadecimal
14141d5
20
Vigesimal
6bbef9
36
Base36
cj9at
md5
ae44e54c8d45d24930f922b601f4131f
sha1
74297d0a768cb39a22eac037727ae614cf3ed82b
sha256
cd1189b91edea3248382395f61dfa95b0f6e7ed310b97415cb42be55d8b9c10c
sha512
ce834781eb54b5b7510944bafa99c838881bca7aff8e065e2fabcd44ab5e7c709c8be9970a12bc2478ac780f5bf071e4c46d580cfb3df3bdd30d4dace4b986e1
ripemd-160
164e8ecd640dc2a45f369b3b0b96d7fef0b0569c
Diameter
42107818
Circumference
132285611.6875
Area
1.3925646152389E+15
Volume
3.9091904914481E+22
Surface area
5.5702584609558E+15
Circumference
132285611.6875
Perimeter
84215636
Area
443267084180281
Diagonal
29774723.648769
Surface area
2659602505081686
Volume
9.332504853027E+21
Space diagonal
36466440.085932
Perimeter
63161727
Area
1.9194027778079E+14
Altitude
18233220.042966
Surface area
1.9194027778079E+14
Volume
1.0998462445053E+21
Height
9924907.882923