20681621 is an odd 8-digits prime number following 20681620
and preceding 20681622 . In scientific notation, it is written as 2.0681621 × 10^7.
The sum of its digits is 26. It has a total of 1 prime factors and 2 positive divisors.
There are 20681620 positive integers (up to 20681621) that are relatively prime to 20681621.
20681621 has 2 divisors, whose sum is 20681622
The reverse of 20681621 is 12618602
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million six hundred eighty-one thousand six hundred twenty-one
Scientific notation
2.0681621 × 10^7
Engineering notation
2.0681621 × 10^6
Prime Factorization
20681621
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20681621
Product of the distinct prime numbers
The prime factorization of 20681621 is 20681621.
Since it has a total of 1 prime factors.
9 , 8 , 68 , 59 , 878 , 684 , 2765 , 2315 , 1385 , 86875 , 432791 , 911485 , 276753 , 1462303 , 79459427 , 91008268 , 445406745 , 126287798 , 8420976881 , 653748146
n×2
41363242
n×3
62044863
n×4
82726484
n×5
103408105
n÷2
10340810.5
n÷3
6893873.6666667
n÷3
5170405.25
n÷5
4136324.2
n2
427729447187641
n3
8.8461383172743E+21
n4
1.8295247999144E+29
n5
3.7837538521931E+36
2 √n
4547.7050256146
3 √n
274.49105204945
4 √n
67.436674188564
5 √n
29.048045424632
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20681622
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10340811
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4547.7051355601
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999032958
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20681621 can be divided by 2 positive divisors.
The sum of these divisors (counting 20681621) is 20681622, the average is 10340811.
Base
System
Value
2
Binary
1001110111001001110010101
3
Ternary
1102220201211222
4
Quaternary
1032321032111
5
Quinary
20243302441
6
Senary
2015140125
8
Octal
116711625
10
Decimal
20681621
12
Duodecimal
6b14645
16
Hexadecimal
13b9395
20
Vigesimal
695411
36
Base36
cba1h
md5
dbd89dd907ad19c6898a45812f73b436
sha1
dc5b94fbf8026876ee8db666e652a294500a0a4e
sha256
29dec692d4987e20057b5d7e072954658a76c06b27c181825de0424edd07ab46
sha512
fa6ae2d7c21a9af75e75264c6c41cdfad4ceae9c480c133e573b3642f94b9d8b690d1ba6020ee46bd92b6787a670057bbf912dec02a8e617d43ede2f7143f30d
ripemd-160
108802395cc2a118d4b581f6809ea5f2def408d4
Diameter
41363242
Circumference
129946457.19586
Area
1.3437516890087E+15
Volume
3.7054617533584E+22
Surface area
5.3750067560349E+15
Circumference
129946457.19586
Perimeter
82726484
Area
427729447187641
Diagonal
29248228.91006
Surface area
2566376683125846
Volume
8.8461383172743E+21
Space diagonal
35821618.354883
Perimeter
62044863
Area
1.8521228360559E+14
Altitude
17910809.177442
Surface area
1.8521228360559E+14
Volume
1.0425273985765E+21
Height
9749409.6366867