21001047 is an odd 8-digits composite number following 21001046
and preceding 21001048 . In scientific notation, it is written as 2.1001047 × 10^7.
The sum of its digits is 15. It has a total of 3 prime factors and 8 positive divisors.
There are 13391928 positive integers (up to 21001047) that are relatively prime to 21001047.
21001047 has 8 divisors, whose sum is 29218944
The reverse of 21001047 is 74010012
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 15
Digital Root 6
Name
twenty-one million one thousand forty-seven
Scientific notation
2.1001047 × 10^7
Engineering notation
2.1001047 × 10^6
Prime Factorization
3 × 23 × 304363
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21001047
Product of the distinct prime numbers
The prime factorization of 21001047 is 3 × 23 × 304363.
Since it has a total of 3 prime factors.
2 , 8 , 31 , 68 , 61 , 831 , 6233 , 6705 , 99447 , 30339 , 215217 , 280845 , 2079427 , 6953896 , 29217794 , 6492358 , 699903293 , 229968557 , 5009491981 , 3600018340
n×2
42002094
n×3
63003141
n×4
84004188
n×5
105005235
n÷2
10500523.5
n÷3
7000349
n÷3
5250261.75
n÷5
4200209.4
n2
441043975096209
n3
9.2623852500623E+21
n4
1.9451978796867E+29
n5
4.08511920956E+36
2 √n
4582.6899305975
3 √n
275.89700263114
4 √n
67.695568027734
5 √n
29.13722511683
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21001046
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21001047 can be divided by 8 positive divisors.
The sum of these divisors (counting 21001047) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000111001101010111
3
Ternary
1110111222000120
4
Quaternary
1100013031113
5
Quinary
20334013142
6
Senary
2030043023
8
Octal
120071527
10
Decimal
21001047
12
Duodecimal
7049473
16
Hexadecimal
1407357
20
Vigesimal
6b52c7
36
Base36
ci4if
md5
5c27d547d1eab31218a48b3d8e47a94b
sha1
da98fada1f722ca8b3963f9c2f34940a68998e94
sha256
3b32dcf3d253fa071b2ffa5d2daa557818f5f779a4c975ec338343341b78f67b
sha512
3fc5eb22a7cabff2385aaebcbc614f58281d48bf0ad8e5a6d95c6dadb49e022b1f6a1748da0a7502cd1b54a950559e6fd5672bbc3d52a9b42cc2b3966436f581
ripemd-160
a6a2112b9a0dc0ddf212b05eedc1d68bffe43657
Diameter
42002094
Circumference
131953469.94579
Area
1.3855805120723E+15
Volume
3.8798188608419E+22
Surface area
5.5423220482892E+15
Circumference
131953469.94579
Perimeter
84004188
Area
441043975096209
Diagonal
29699965.491435
Surface area
2646263850577254
Volume
9.2623852500623E+21
Space diagonal
36374880.416142
Perimeter
63003141
Area
1.9097764330969E+14
Altitude
18187440.208071
Surface area
1.9097764330969E+14
Volume
1.0915825700469E+21
Height
9899988.4971449