20681907 is an odd 8-digits composite number following 20681906
and preceding 20681908 . In scientific notation, it is written as 2.0681907 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 13736520 positive integers (up to 20681907) that are relatively prime to 20681907.
20681907 has 8 divisors, whose sum is 27678720
The reverse of 20681907 is 70918602
Previous prime number is 271
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million six hundred eighty-one thousand nine hundred seven
Scientific notation
2.0681907 × 10^7
Engineering notation
2.0681907 × 10^6
Prime Factorization
3 × 271 × 25439
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20681907
Product of the distinct prime numbers
The prime factorization of 20681907 is 3 × 271 × 25439.
Since it has a total of 3 prime factors.
3 , 8 , 76 , 96 , 130 , 7 , 5162 , 807 , 34375 , 69700 , 304999 , 606771 , 7288880 , 8118233 , 35467590 , 95323634 , 819419589 , 815487890 , 2795870543 , 7645104432
n×2
41363814
n×3
62045721
n×4
82727628
n×5
103409535
n÷2
10340953.5
n÷3
6893969
n÷3
5170476.75
n÷5
4136381.4
n2
427741277156649
n3
8.846505314215E+21
n4
1.829626001836E+29
n5
3.7840154814754E+36
2 √n
4547.7364699375
3 √n
274.49231732872
4 √n
67.436907327795
5 √n
29.048125763548
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
-20681906
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 20681907 can be divided by 8 positive divisors.
The sum of these divisors (counting 20681907) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110111001010010110011
3
Ternary
1102220202020120
4
Quaternary
1032321102303
5
Quinary
20243310112
6
Senary
2015141323
8
Octal
116712263
10
Decimal
20681907
12
Duodecimal
6b14843
16
Hexadecimal
13b94b3
20
Vigesimal
6954f7
36
Base36
cba9f
md5
fb05ed544eb5606c60a51cc7b408ba27
sha1
cbc55bd41aa0e3e3bd4fcec1eb923deeb1171c0d
sha256
cdd879247a04eb2672365e48acfe486bce9bd517af6e8c88d2c661d7308987d7
sha512
2cf6030e07410c9f2b08a2fc99b83bf48ba5458713dcee9d5a1af4a5dc4367ad422cd40a07463f0e7e109b6338daef58059fc75ce1427499ff557becb81a45b0
ripemd-160
d34e6fb656483794c97a4dd839f5e087ab43d62c
Diameter
41363814
Circumference
129948254.18685
Area
1.3437888539524E+15
Volume
3.7056154806775E+22
Surface area
5.3751554158098E+15
Circumference
129948254.18685
Perimeter
82727628
Area
427741277156649
Diagonal
29248633.375139
Surface area
2566447662939894
Volume
8.846505314215E+21
Space diagonal
35822113.721414
Perimeter
62045721
Area
1.8521740613243E+14
Altitude
17911056.860707
Surface area
1.8521740613243E+14
Volume
1.0425706495807E+21
Height
9749544.4583797