20668749 is an odd 8-digits composite number following 20668748
and preceding 20668750 . In scientific notation, it is written as 2.0668749 × 10^7.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 13734240 positive integers (up to 20668749) that are relatively prime to 20668749.
20668749 has 8 divisors, whose sum is 27648192
The reverse of 20668749 is 94786602
Previous prime number is 311
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty million six hundred sixty-eight thousand seven hundred forty-nine
Scientific notation
2.0668749 × 10^7
Engineering notation
2.0668749 × 10^6
Prime Factorization
3 × 311 × 22153
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20668749
Product of the distinct prime numbers
The prime factorization of 20668749 is 3 × 311 × 22153.
Since it has a total of 3 prime factors.
5 , 4 , 93 , 63 , 755 , 535 , 4011 , 1628 , 93696 , 99730 , 43225 , 579504 , 4559159 , 6463589 , 29564741 , 2227179 , 123467186 , 963167598 , 4821378113 , 8480581290
n×2
41337498
n×3
62006247
n×4
82674996
n×5
103343745
n÷2
10334374.5
n÷3
6889583
n÷3
5167187.25
n÷5
4133749.8
n2
427197185225001
n3
8.8296313949221E+21
n4
1.8249743506416E+29
n5
3.771993678485E+36
2 √n
4546.2895860251
3 √n
274.43409355325
4 √n
67.426178788547
5 √n
29.044428691094
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
-20668748
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 20668749 can be divided by 8 positive divisors.
The sum of these divisors (counting 20668749) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001110110110000101001101
3
Ternary
1102220002012020
4
Quaternary
1032312011031
5
Quinary
20242344444
6
Senary
2015000353
8
Octal
116660515
10
Decimal
20668749
12
Duodecimal
6b090b9
16
Hexadecimal
13b614d
20
Vigesimal
693bh9
36
Base36
cb03x
md5
70a2314bda21a3b39428ca5108d47b2a
sha1
8a7c5b5b2b260f13bc9151a05835136bf34e5f1e
sha256
b04ab7c9391587dafcb8618ef9146d5232c2d8dedf6df3ce2e61d965fc83233c
sha512
7300d6d58f6617077958c6ee185682e79ab80027868bc8aa9f1f0c71d9af492312496c6963916d996d5229d085a9509db2fcc0623079d25dc1fbf3e769e25a8e
ripemd-160
146a9306ffa55ed193dde5873c265dcd10a5612c
Diameter
41337498
Circumference
129865580.03458
Area
1.3420795387371E+15
Volume
3.6985473498924E+22
Surface area
5.3683181549484E+15
Circumference
129865580.03458
Perimeter
82674996
Area
427197185225001
Diagonal
29230025.153085
Surface area
2563183111350006
Volume
8.8296313949221E+21
Space diagonal
35799323.396888
Perimeter
62006247
Area
1.8498180741503E+14
Altitude
17899661.698444
Surface area
1.8498180741503E+14
Volume
1.0405820391212E+21
Height
9743341.7176951