20781410 is an even 8-digits composite number following 20781409
and preceding 20781411 . In scientific notation, it is written as 2.0781410 × 10^7.
The sum of its digits is 23. It has a total of 4 prime factors and 16 positive divisors.
There are 7673088 positive integers (up to 20781410) that are relatively prime to 20781410.
20781410 has 16 divisors, whose sum is 40284216
The reverse of 20781410 is 01418702
Previous prime number is 13
Is Prime? no
Number parity even
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million seven hundred eighty-one thousand four hundred ten
Scientific notation
2.0781410 × 10^7
Engineering notation
2.0781410 × 10^6
Prime Factorization
2 × 5 × 13 × 159857
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20781410
Product of the distinct prime numbers
The prime factorization of 20781410 is 2 × 5 × 13 × 159857.
Since it has a total of 4 prime factors.
3 , 8 , 34 , 73 , 585 , 692 , 3529 , 7975 , 66433 , 40100 , 983635 , 64400 , 5516652 , 742133 , 99077290 , 32336001 , 416852051 , 444679212 , 4967926830 , 5021842753
n×2
41562820
n×3
62344230
n×4
83125640
n×5
103907050
n÷2
10390705
n÷3
6927136.6666667
n÷3
5195352.5
n÷5
4156282
n2
431867001588100
n3
8.974805225473E+21
n4
1.865091070607E+29
n5
3.8759222225622E+36
2 √n
4558.6631812407
3 √n
274.93181780737
4 √n
67.517873050332
5 √n
29.076022894027
1 , 2 , 5 , 10 , 13 , 26 , 65 , 130 , 159857 , 319714 , 799285 , 1598570 , 2078141 , 4156282 , 10390705 , 20781410
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
-20781409
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 20781410 can be divided by 16 positive divisors.
The sum of these divisors (counting 20781410) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111010001100101100010
3
Ternary
1110002210201212
4
Quaternary
1033101211202
5
Quinary
20310001120
6
Senary
2021230122
8
Octal
117214542
10
Decimal
20781410
12
Duodecimal
6b62342
16
Hexadecimal
13d1962
20
Vigesimal
69hdaa
36
Base36
cdf1e
md5
e202ff12fce82afce7b1eef148a8d129
sha1
83f299b5b451dfc31d97612dddb4c90abebe2a1b
sha256
0170542018a64d2098aa40f49a7cfa3c5886a46665761810c85f57b64867c78b
sha512
d1896759af757b41aaf589342ca5cf8551117bf7646162a4077d4041cd9f0e0d97790ef38977dc4a867b4f984d9f854ce5f41f705915b32cc745aed6cfc18eb6
ripemd-160
3503e60a239cb296b25f6c978dc3d8dc4fd38d1f
Diameter
41562820
Circumference
130573449.97447
Area
1.356750199517E+15
Volume
3.7593576218327E+22
Surface area
5.4270007980681E+15
Circumference
130573449.97447
Perimeter
83125640
Area
431867001588100
Diagonal
29389351.867236
Surface area
2591202009528600
Volume
8.974805225473E+21
Space diagonal
35994457.97292
Perimeter
62344230
Area
1.8700389721575E+14
Altitude
17997228.98646
Surface area
1.8700389721575E+14
Volume
1.0576909391267E+21
Height
9796450.622412