20731284 is an even 8-digits composite number following 20731283
and preceding 20731285 . In scientific notation, it is written as 2.0731284 × 10^7.
The sum of its digits is 27. It has a total of 4 prime factors and 12 positive divisors.
There are 5923152 positive integers (up to 20731284) that are relatively prime to 20731284.
20731284 has 12 divisors, whose sum is 36856064
The reverse of 20731284 is 48213702
Previous prime number is 63
Is Prime? no
Number parity even
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty million seven hundred thirty-one thousand two hundred eighty-four
Scientific notation
2.0731284 × 10^7
Engineering notation
2.0731284 × 10^6
Prime Factorization
2 × 2 × 63 × 82267
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10365642
Product of the distinct prime numbers
The prime factorization of 20731284 is 2 × 2 × 63 × 82267.
Since it has a total of 4 prime factors.
2 , 4 , 30 , 24 , 256 , 220 , 5792 , 2611 , 52766 , 88546 , 937440 , 188521 , 8065994 , 2272132 , 7417392 , 61379983 , 424958275 , 861764239 , 4378837700 , 5244021597
n×2
41462568
n×3
62193852
n×4
82925136
n×5
103656420
n÷2
10365642
n÷3
6910428
n÷3
5182821
n÷5
4146256.8
n2
429786136288656
n3
8.9100184506628E+21
n4
1.8471612294593E+29
n5
3.829402404171E+36
2 √n
4553.1619782301
3 √n
274.71058919398
4 √n
67.477121887571
5 √n
29.061982721018
1 , 2 , 4 , 63 , 126 , 252 , 82267 , 164534 , 329068 , 5182821 , 10365642 , 20731284
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20731283
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20731284 can be divided by 12 positive divisors.
The sum of these divisors (counting 20731284) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1001111000101010110010100
3
Ternary
1110000020222100
4
Quaternary
1033011112110
5
Quinary
20301400114
6
Senary
2020202100
8
Octal
117052624
10
Decimal
20731284
12
Duodecimal
6b39330
16
Hexadecimal
13c5594
20
Vigesimal
69b844
36
Base36
cccd0
md5
54bf686f80b5e51b392cdc015203461f
sha1
20f43cef4dbf15cd49483ad9abe51e9bea7673f9
sha256
495a2cb9a26af86b658f57edc8d94ea7b7709d82868518ecf6a66a4602a15317
sha512
ca2b0fc7e449c3f59d90f487818123a0ac8cdc18c029e23555bb5f507a10d608fd79b07fba3cf2fd8ca9a87f9abfa1acdf0b1f9f0ec291b0803a9d1d9a81b250
ripemd-160
049706141d68bf2a5d890b789399ee2dcb5653d1
Diameter
41462568
Circumference
130258499.02777
Area
1.3502129683792E+15
Volume
3.7322198010602E+22
Surface area
5.4008518735167E+15
Circumference
130258499.02777
Perimeter
82925136
Area
429786136288656
Diagonal
29318462.998208
Surface area
2578716817731936
Volume
8.9100184506628E+21
Space diagonal
35907637.19414
Perimeter
62193852
Area
1.8610285611017E+14
Altitude
17953818.59707
Surface area
1.8610285611017E+14
Volume
1.0500557444935E+21
Height
9772820.9994028