20512986 is an even 8-digits composite number following 20512985
and preceding 20512987 . In scientific notation, it is written as 2.0512986 × 10^7.
The sum of its digits is 33. It has a total of 5 prime factors and 32 positive divisors.
There are 6286464 positive integers (up to 20512986) that are relatively prime to 20512986.
20512986 has 32 divisors, whose sum is 44358720
The reverse of 20512986 is 68921502
Previous prime number is 409
Is Prime? no
Number parity even
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million five hundred twelve thousand nine hundred eighty-six
Scientific notation
2.0512986 × 10^7
Engineering notation
2.0512986 × 10^6
Prime Factorization
2 × 3 × 13 × 409 × 643
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
20512986
Product of the distinct prime numbers
The prime factorization of 20512986 is 2 × 3 × 13 × 409 × 643.
Since it has a total of 5 prime factors.
7 , 1 , 39 , 26 , 894 , 553 , 6385 , 3661 , 66074 , 18054 , 836728 , 230250 , 840501 , 5163986 , 55560028 , 18667778 , 214115888 , 622205074 , 6223565001 , 7518828769
n×2
41025972
n×3
61538958
n×4
82051944
n×5
102564930
n÷2
10256493
n÷3
6837662
n÷3
5128246.5
n÷5
4102597.2
n2
420782594636196
n3
8.631507472816E+21
n4
1.7705799194877E+29
n5
3.6319881100332E+36
2 √n
4529.1264058315
3 √n
273.74296139197
4 √n
67.298784579155
5 √n
29.00051943547
1 , 2 , 3 , 6 , 13 , 26 , 39 , 78 , 409 , 643 , 818 , 1227 , 1286 , 1929 , 2454 , 3858 , 5317 , 8359 , 10634 , 15951 , 16718 , 25077 , 31902 , 50154 , 262987 , 525974 , 788961 , 1577922 , 3418831 , 6837662 , 10256493 , 20512986
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20512985
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20512986 can be divided by 32 positive divisors.
The sum of these divisors (counting 20512986) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1001110010000000011011010
3
Ternary
1102121011112020
4
Quaternary
1032100003122
5
Quinary
20222403421
6
Senary
2011355310
8
Octal
116200332
10
Decimal
20512986
12
Duodecimal
6a52b36
16
Hexadecimal
13900da
20
Vigesimal
684296
36
Base36
c7nx6
md5
54021a55428fc295feb5fd5732b15cd6
sha1
bbae432152038d9c7fe08dd3c162f2ce9fb759bb
sha256
60cef7ee03971fce0a8afb4f4d6c16161b0fa1518592d118be38772e0c50ed14
sha512
e7734319c465d8f53750a5f001b4169b44e6d32b868a8fe06880c860cdcef4db4ba08e6ae2343f43057772502988188caa976ddd1d2f216847bcb2532564d93b
ripemd-160
8be3e87bf898d7ac05d1ffb1c3dea7dd3905bd34
Diameter
41025972
Circumference
128886892.24158
Area
1.3219275080675E+15
Volume
3.6155573954672E+22
Surface area
5.2877100322701E+15
Circumference
128886892.24158
Perimeter
82051944
Area
420782594636196
Diagonal
29009743.005969
Surface area
2524695567817176
Volume
8.631507472816E+21
Space diagonal
35529533.966949
Perimeter
61538958
Area
1.8220420821264E+14
Altitude
17764766.983475
Surface area
1.8220420821264E+14
Volume
1.0172329109818E+21
Height
9669914.3353231