21142486 is an even 8-digits composite number following 21142485
and preceding 21142487 . In scientific notation, it is written as 2.1142486 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 10571242 positive integers (up to 21142486) that are relatively prime to 21142486.
21142486 has 4 divisors, whose sum is 31713732
The reverse of 21142486 is 68424112
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million one hundred forty-two thousand four hundred eighty-six
Scientific notation
2.1142486 × 10^7
Engineering notation
2.1142486 × 10^6
Prime Factorization
2 × 10571243
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21142486
Product of the distinct prime numbers
The prime factorization of 21142486 is 2 × 10571243.
Since it has a total of 2 prime factors.
5 , 7 , 18 , 17 , 855 , 31 , 9520 , 8546 , 20698 , 81282 , 649779 , 536123 , 6454457 , 7490407 , 65025360 , 65870780 , 521333650 , 270167125 , 3454532619 , 6702059738
n×2
42284972
n×3
63427458
n×4
84569944
n×5
105712430
n÷2
10571243
n÷3
7047495.3333333
n÷3
5285621.5
n÷5
4228497.2
n2
447004714260196
n3
9.4507909131802E+21
n4
1.9981321457084E+29
n5
4.224548091679E+36
2 √n
4598.0959102655
3 √n
276.51499275055
4 √n
67.809261242587
5 √n
29.176366808422
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21142485
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21142486 can be divided by 4 positive divisors.
The sum of these divisors (counting 21142486) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000101001101111010110
3
Ternary
1110210011001001
4
Quaternary
1100221233112
5
Quinary
20403024421
6
Senary
2033053514
8
Octal
120515726
10
Decimal
21142486
12
Duodecimal
70b729a
16
Hexadecimal
1429bd6
20
Vigesimal
6c2g46
36
Base36
cl5na
md5
f4ee63a72e2533a705593f2f24f93fc1
sha1
40830720a7a2881d1d630058aa9e95546d2d82dd
sha256
440666f3fabd5e95c04b9ac9ce99ce3153eb7b6e9383414bd97b0bf9e8d91872
sha512
d0aaa811bcf6e07a2c7eab4b693b728dcad5fa725b1e67945ae387a4f51507c8049b532639c0098b4245a0821001fd3ec399f13421f8a79608ed0dffba81d608
ripemd-160
71c206abb3a2a73ca9447c5c2f6e595a00b33854
Diameter
42284972
Circumference
132842157.39245
Area
1.4043067264398E+15
Volume
3.9587380404613E+22
Surface area
5.6172269057593E+15
Circumference
132842157.39245
Perimeter
84569944
Area
447004714260196
Diagonal
29899990.443483
Surface area
2682028285561176
Volume
9.4507909131802E+21
Space diagonal
36619859.950314
Perimeter
63427458
Area
1.9355871908037E+14
Altitude
18309929.975157
Surface area
1.9355871908037E+14
Volume
1.113786390381E+21
Height
9966663.4811611