20781272 is an even 8-digits composite number following 20781271
and preceding 20781273 . In scientific notation, it is written as 2.0781272 × 10^7.
The sum of its digits is 29. It has a total of 5 prime factors and 16 positive divisors.
There are 10109664 positive integers (up to 20781272) that are relatively prime to 20781272.
20781272 has 16 divisors, whose sum is 40018560
The reverse of 20781272 is 27218702
Previous prime number is 37
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty million seven hundred eighty-one thousand two hundred seventy-two
Scientific notation
2.0781272 × 10^7
Engineering notation
2.0781272 × 10^6
Prime Factorization
2 × 2 × 2 × 37 × 70207
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
5195318
Product of the distinct prime numbers
The prime factorization of 20781272 is 2 × 2 × 2 × 37 × 70207.
Since it has a total of 5 prime factors.
1 , 8 , 89 , 56 , 334 , 113 , 3948 , 5263 , 10710 , 44805 , 425375 , 625295 , 1163384 , 1964909 , 51843251 , 34995325 , 965530482 , 879858789 , 3075644426 , 2997539707
n×2
41562544
n×3
62343816
n×4
83125088
n×5
103906360
n÷2
10390636
n÷3
6927090.6666667
n÷3
5195318
n÷5
4156254.4
n2
431861265937984
n3
8.9746264337216E+21
n4
1.8650415301756E+29
n5
3.8757935329875E+36
2 √n
4558.6480451994
3 √n
274.93120923983
4 √n
67.517760961094
5 √n
29.075984277765
1 , 2 , 4 , 8 , 37 , 74 , 148 , 296 , 70207 , 140414 , 280828 , 561656 , 2597659 , 5195318 , 10390636 , 20781272
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
-20781271
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 20781272 can be divided by 16 positive divisors.
The sum of these divisors (counting 20781272) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111010001100011011000
3
Ternary
1110002210112202
4
Quaternary
1033101203120
5
Quinary
20310000042
6
Senary
2021225332
8
Octal
117214330
10
Decimal
20781272
12
Duodecimal
6b62248
16
Hexadecimal
13d18d8
20
Vigesimal
69hd3c
36
Base36
cdexk
md5
74665ba3bd149a83c0e30e290f834892
sha1
49eded7423b54cb1af0b8393dd8bcb2e8596b597
sha256
40390e89a042ebb1924708abd928ad2eec391a1bebb8b6c64d543fd9b28b1cb2
sha512
923fec90ba7467d4fc5a224f94c674e6433de50e8e300f73560b8a3d218545aae76ca221cbf5f27ddce5ad421f0de2755d404472c4419793ddc6a19ec5a8e387
ripemd-160
3700cd3604e2dde053a5f9eb3553417e64c35638
Diameter
41562544
Circumference
130572582.8949
Area
1.3567321804408E+15
Volume
3.759282729719E+22
Surface area
5.426928721763E+15
Circumference
130572582.8949
Perimeter
83125088
Area
431861265937984
Diagonal
29389156.705764
Surface area
2591167595627904
Volume
8.9746264337216E+21
Space diagonal
35994218.949908
Perimeter
62343816
Area
1.870014136064E+14
Altitude
17997109.474954
Surface area
1.870014136064E+14
Volume
1.0576698683168E+21
Height
9796385.5685881