21037581 is an odd 8-digits composite number following 21037580
and preceding 21037582 . In scientific notation, it is written as 2.1037581 × 10^7.
The sum of its digits is 27. It has a total of 3 prime factors and 6 positive divisors.
There are 14025048 positive integers (up to 21037581) that are relatively prime to 21037581.
21037581 has 6 divisors, whose sum is 30387630
The reverse of 21037581 is 18573012
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-one million thirty-seven thousand five hundred eighty-one
Scientific notation
2.1037581 × 10^7
Engineering notation
2.1037581 × 10^6
Prime Factorization
3 × 3 × 2337509
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
7012527
Product of the distinct prime numbers
The prime factorization of 21037581 is 3 × 3 × 2337509.
Since it has a total of 3 prime factors.
9 , 6 , 60 , 94 , 848 , 340 , 1917 , 2052 , 6376 , 59327 , 67781 , 785982 , 331607 , 228659 , 39231190 , 34479483 , 654174479 , 782021695 , 3992596976 , 7989144925
n×2
42075162
n×3
63112743
n×4
84150324
n×5
105187905
n÷2
10518790.5
n÷3
7012527
n÷3
5259395.25
n÷5
4207516.2
n2
442579814331561
n3
9.3108086929652E+21
n4
1.9587689205376E+29
n5
4.1207759826092E+36
2 √n
4586.6742853619
3 √n
276.05689595785
4 √n
67.724990109722
5 √n
29.147355653861
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
-21037580
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 21037581 can be divided by 6 positive divisors.
The sum of these divisors (counting 21037581) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1010000010000001000001101
3
Ternary
1110120211010200
4
Quaternary
1100100020031
5
Quinary
20341200311
6
Senary
2030524113
8
Octal
120201015
10
Decimal
21037581
12
Duodecimal
7066639
16
Hexadecimal
141020d
20
Vigesimal
6b9dj1
36
Base36
ciwp9
md5
9f6dca12ff6762376033da9105e0caa0
sha1
17ce5149596c88668ed7f35d1fa6ea7eff825d78
sha256
52614e1ef912deaef035bcf759eb837c19af23fe754f68e4c37c8f615eb90636
sha512
584702a7be18e59b761c34603d928f05646d5166e8c8ae15d68f63da644f248e7ec40e0843df3f06836ed77ea0fc65c873a2e3fab793bdb9ab2092e5797e1080
ripemd-160
498ca66a62f130bedf8a3a4bf2d9be0d985e904c
Diameter
42075162
Circumference
132183019.8378
Area
1.3904054933312E+15
Volume
3.9001024251733E+22
Surface area
5.5616219733247E+15
Circumference
132183019.8378
Perimeter
84150324
Area
442579814331561
Diagonal
29751632.369723
Surface area
2655478885989366
Volume
9.3108086929652E+21
Space diagonal
36438159.160346
Perimeter
63112743
Area
1.9164268120667E+14
Altitude
18219079.580173
Surface area
1.9164268120667E+14
Volume
1.0972893275211E+21
Height
9917210.7899075