20281311 is an odd 8-digits composite number following 20281310
and preceding 20281312 . In scientific notation, it is written as 2.0281311 × 10^7.
The sum of its digits is 18. It has a total of 3 prime factors and 6 positive divisors.
There are 13520868 positive integers (up to 20281311) that are relatively prime to 20281311.
20281311 has 6 divisors, whose sum is 29295240
The reverse of 20281311 is 11318202
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty million two hundred eighty-one thousand three hundred eleven
Scientific notation
2.0281311 × 10^7
Engineering notation
2.0281311 × 10^6
Prime Factorization
3 × 3 × 2253479
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
6760437
Product of the distinct prime numbers
The prime factorization of 20281311 is 3 × 3 × 2253479.
Since it has a total of 3 prime factors.
3 , 8 , 91 , 52 , 968 , 677 , 8128 , 9076 , 44347 , 18637 , 620317 , 367167 , 2811549 , 9598097 , 19705062 , 28789936 , 297171374 , 320824152 , 8610361431 , 7773869021
n×2
40562622
n×3
60843933
n×4
81125244
n×5
101406555
n÷2
10140655.5
n÷3
6760437
n÷3
5070327.75
n÷5
4056262.2
n2
411331575878721
n3
8.3423436145164E+21
n4
1.6919366531487E+29
n5
3.4314693454808E+36
2 √n
4503.4776562119
3 √n
272.70850019272
4 √n
67.107955237899
5 √n
28.934714727996
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20281310
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20281311 can be divided by 6 positive divisors.
The sum of these divisors (counting 20281311) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1001101010111011111011111
3
Ternary
1102011101201200
4
Quaternary
1031113133133
5
Quinary
20143000221
6
Senary
2002410543
8
Octal
115273737
10
Decimal
20281311
12
Duodecimal
6960a53
16
Hexadecimal
13577df
20
Vigesimal
66f35b
36
Base36
c2p5r
md5
7b4fea1f4bb7a4625adec1589e963548
sha1
8e4a87e93a44b7c36af0ecd2a233335a321805bd
sha256
afef27b390c3605f93c90e04555faae52bdb82f7e4414d34da22b4c99c3f325e
sha512
421f82ab4090fc16f60c34acd7635500c718bfd87ce237773550dc1e6bd10c6aea8aaa316952525cc80f5098db100777b5c9fe6f39382b8f59912b542895befc
ripemd-160
7b2c8083800c7c38bdfa00c447c40d7319fbfe64
Diameter
40562622
Circumference
127431235.28554
Area
1.2922362569701E+15
Volume
3.4944327217449E+22
Surface area
5.1689450278804E+15
Circumference
127431235.28554
Perimeter
81125244
Area
411331575878721
Diagonal
28682105.078907
Surface area
2467989455272326
Volume
8.3423436145164E+21
Space diagonal
35128261.096106
Perimeter
60843933
Area
1.7811179704483E+14
Altitude
17564130.548053
Surface area
1.7811179704483E+14
Volume
9.8315462346881E+20
Height
9560701.6929689