20210909 is an odd 8-digits composite number following 20210908
and preceding 20210910 . In scientific notation, it is written as 2.0210909 × 10^7.
The sum of its digits is 23. It has a total of 4 prime factors and 16 positive divisors.
There are 18316800 positive integers (up to 20210909) that are relatively prime to 20210909.
20210909 has 16 divisors, whose sum is 22208256
The reverse of 20210909 is 90901202
Previous prime number is 107
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million two hundred ten thousand nine hundred nine
Scientific notation
2.0210909 × 10^7
Engineering notation
2.0210909 × 10^6
Prime Factorization
41 × 17 × 107 × 271
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20210909
Product of the distinct prime numbers
The prime factorization of 20210909 is 41 × 17 × 107 × 271.
Since it has a total of 4 prime factors.
10 , 1 , 66 , 9 , 88 , 380 , 3186 , 8653 , 6004 , 75208 , 418625 , 761192 , 9568150 , 9692987 , 68038469 , 64782362 , 935583582 , 596805402 , 7392701878 , 1943057533
n×2
40421818
n×3
60632727
n×4
80843636
n×5
101054545
n÷2
10105454.5
n÷3
6736969.6666667
n÷3
5052727.25
n÷5
4042181.8
n2
408480842606281
n3
8.2557691381589E+21
n4
1.6685659877634E+29
n5
3.3723235339181E+36
2 √n
4495.6544573621
3 √n
272.39258567037
4 √n
67.049641739253
5 √n
28.914598709145
1 , 17 , 41 , 107 , 271 , 697 , 1819 , 4387 , 4607 , 11111 , 28997 , 74579 , 188887 , 492949 , 1188877 , 20210909
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20210908
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20210909 can be divided by 16 positive divisors.
The sum of these divisors (counting 20210909) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001101000110010011011101
3
Ternary
1102000211011012
4
Quaternary
1031012103131
5
Quinary
20133222114
6
Senary
2001105005
8
Octal
115062335
10
Decimal
20210909
12
Duodecimal
6928165
16
Hexadecimal
13464dd
20
Vigesimal
666759
36
Base36
c16u5
md5
b488d265445ec7f32a2b750c1be94d8b
sha1
78e3a8d9d78eea119036711351c3398144e8104b
sha256
e5718d1bb8efcb47a5801ae1115c8cc9e7fee1c904158f40d1bc50b001cba0f9
sha512
e404d4b9cdaa38889e01b5deb45bb8e5c03413ffa4567ff78676e2759380731c405f478f2f8c30f820dd60017decd05edd143ca8315b36677c75b4c98060cff1
ripemd-160
37b28e654becdb847e4c75cf1bed16cbeca40d7a
Diameter
40421818
Circumference
126988886.47354
Area
1.2832804142641E+15
Volume
3.4581684898898E+22
Surface area
5.1331216570562E+15
Circumference
126988886.47354
Perimeter
80843636
Area
408480842606281
Diagonal
28582541.615688
Surface area
2450885055637686
Volume
8.2557691381589E+21
Space diagonal
35006321.255151
Perimeter
60632727
Area
1.7687739332816E+14
Altitude
17503160.627576
Surface area
1.7687739332816E+14
Volume
9.7295172358379E+20
Height
9527513.8718961