20781339 is an odd 8-digits composite number following 20781338
and preceding 20781340 . In scientific notation, it is written as 2.0781339 × 10^7.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 13854224 positive integers (up to 20781339) that are relatively prime to 20781339.
20781339 has 4 divisors, whose sum is 27708456
The reverse of 20781339 is 93318702
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million seven hundred eighty-one thousand three hundred thirty-nine
Scientific notation
2.0781339 × 10^7
Engineering notation
2.0781339 × 10^6
Prime Factorization
3 × 6927113
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20781339
Product of the distinct prime numbers
The prime factorization of 20781339 is 3 × 6927113.
Since it has a total of 2 prime factors.
5 , 8 , 2 , 63 , 941 , 242 , 3142 , 1908 , 15812 , 78811 , 685769 , 656250 , 4972704 , 2663443 , 92815808 , 74261189 , 586715468 , 607558946 , 8180120523 , 7481275932
n×2
41562678
n×3
62344017
n×4
83125356
n×5
103906695
n÷2
10390669.5
n÷3
6927113
n÷3
5195334.75
n÷5
4156267.8
n2
431864050632921
n3
8.9747132381159E+21
n4
1.8650655822907E+29
n5
3.8758560122816E+36
2 √n
4558.6553938634
3 √n
274.93150470412
4 √n
67.517815381301
5 √n
29.076003026265
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20781338
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20781339 can be divided by 4 positive divisors.
The sum of these divisors (counting 20781339) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111010001100100011011
3
Ternary
1110002210122020
4
Quaternary
1033101210123
5
Quinary
20310000324
6
Senary
2021225523
8
Octal
117214433
10
Decimal
20781339
12
Duodecimal
6b622a3
16
Hexadecimal
13d191b
20
Vigesimal
69hd6j
36
Base36
cdezf
md5
a83d7488e4b3b96849c64366c7c1aa8a
sha1
51d51a1d2152176fb16682de2eac86c2e6d868b0
sha256
ec8811bdfb714e251f34e97a27a1548d1713fd1f9909fd354710d9cd45747155
sha512
bdb926df8d98f8157de6fbbf02649e324ddcecfeb3dcd8b824771146fb86581fab154e9332326944a9fad8b033acfbdc66de88f855b569ba160afa491893ca9c
ripemd-160
4feed1bb8d976d25c5ac0ffd6af9e4b40d9cd13e
Diameter
41562678
Circumference
130573003.86832
Area
1.3567409288179E+15
Volume
3.7593190902587E+22
Surface area
5.4269637152717E+15
Circumference
130573003.86832
Perimeter
83125356
Area
431864050632921
Diagonal
29389251.458073
Surface area
2591184303797526
Volume
8.9747132381159E+21
Space diagonal
35994334.997313
Perimeter
62344017
Area
1.8700261941468E+14
Altitude
17997167.498656
Surface area
1.8700261941468E+14
Volume
1.0576800983127E+21
Height
9796417.152691