21087544 is an even 8-digits composite number following 21087543
and preceding 21087545 . In scientific notation, it is written as 2.1087544 × 10^7.
The sum of its digits is 31. It has a total of 6 prime factors and 32 positive divisors.
There are 10114272 positive integers (up to 21087544) that are relatively prime to 21087544.
21087544 has 32 divisors, whose sum is 41184000
The reverse of 21087544 is 44578012
Previous prime number is 59
Is Prime? no
Number parity even
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million eighty-seven thousand five hundred forty-four
Scientific notation
2.1087544 × 10^7
Engineering notation
2.1087544 × 10^6
Prime Factorization
2 × 2 × 2 × 43 × 59 × 1039
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
5271886
Product of the distinct prime numbers
The prime factorization of 21087544 is 2 × 2 × 2 × 43 × 59 × 1039.
Since it has a total of 6 prime factors.
2 , 6 , 53 , 13 , 790 , 404 , 847 , 8347 , 94009 , 41716 , 701512 , 361116 , 4435512 , 2832022 , 71942983 , 8665106 , 242486669 , 881651108 , 2005614887 , 5782030232
n×2
42175088
n×3
63262632
n×4
84350176
n×5
105437720
n÷2
10543772
n÷3
7029181.3333333
n÷3
5271886
n÷5
4217508.8
n2
444684511951936
n3
9.377304211905E+21
n4
1.9774431516993E+29
n5
4.1699419468958E+36
2 √n
4592.1175943131
3 √n
276.2752627334
4 √n
67.765165050438
5 √n
29.1611871667
1 , 2 , 4 , 8 , 43 , 59 , 86 , 118 , 172 , 236 , 344 , 472 , 1039 , 2078 , 2537 , 4156 , 5074 , 8312 , 10148 , 20296 , 44677 , 61301 , 89354 , 122602 , 178708 , 245204 , 357416 , 490408 , 2635943 , 5271886 , 10543772 , 21087544
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
-21087543
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 21087544 can be divided by 32 positive divisors.
The sum of these divisors (counting 21087544) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1010000011100010100111000
3
Ternary
1110200100200011
4
Quaternary
1100130110320
5
Quinary
20344300134
6
Senary
2031551304
8
Octal
120342470
10
Decimal
21087544
12
Duodecimal
708b534
16
Hexadecimal
141c538
20
Vigesimal
6bfih4
36
Base36
cjz94
md5
41eb71c0a0bfcecd98bd481e6c641991
sha1
6ededf96cca7e31c8f1609d869f4e10de9c3a1f9
sha256
0f41f7d17eda20fbd76fd38e18c978e7f5dd75ebd05f788be295a0afbf65b6a8
sha512
0f3fcf2619bdddb3986da6d3d01838c1f4ac8c02500e15908fdbc680e85f24010811d671df8a38f690f9b0dfe74f001fe2d3e5b8ba010890695d14111d69ba85
ripemd-160
7207be50fbbd5102102d1da7f91b1ad135bd5c86
Diameter
42175088
Circumference
132496946.6253
Area
1.3970175959134E+15
Volume
3.927956003013E+22
Surface area
5.5880703836535E+15
Circumference
132496946.6253
Perimeter
84350176
Area
444684511951936
Diagonal
29822290.721939
Surface area
2668107071711616
Volume
9.377304211905E+21
Space diagonal
36524697.614844
Perimeter
63262632
Area
1.9255404200993E+14
Altitude
18262348.807422
Surface area
1.9255404200993E+14
Volume
1.1051258995812E+21
Height
9940763.5739798