21001045 is an odd 8-digits composite number following 21001044
and preceding 21001046 . In scientific notation, it is written as 2.1001045 × 10^7.
The sum of its digits is 13. It has a total of 3 prime factors and 8 positive divisors.
There are 15508416 positive integers (up to 21001045) that are relatively prime to 21001045.
21001045 has 8 divisors, whose sum is 27139896
The reverse of 21001045 is 54010012
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 13
Digital Root 4
Name
twenty-one million one thousand forty-five
Scientific notation
2.1001045 × 10^7
Engineering notation
2.1001045 × 10^6
Prime Factorization
13 × 5 × 323093
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21001045
Product of the distinct prime numbers
The prime factorization of 21001045 is 13 × 5 × 323093.
Since it has a total of 3 prime factors.
7 , 10 , 20 , 73 , 35 , 144 , 6432 , 171 , 99625 , 74621 , 61559 , 568579 , 2836640 , 722387 , 68676229 , 31733210 , 869072101 , 352839533 , 2991192875 , 9013916546
n×2
42002090
n×3
63003135
n×4
84004180
n×5
105005225
n÷2
10500522.5
n÷3
7000348.3333333
n÷3
5250261.25
n÷5
4200209
n2
441043891092025
n3
9.2623826037987E+21
n4
1.9451971386959E+29
n5
4.0851172643625E+36
2 √n
4582.6897123851
3 √n
275.89699387294
4 √n
67.695566416015
5 √n
29.137224561863
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
-21001044
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 21001045 can be divided by 8 positive divisors.
The sum of these divisors (counting 21001045) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000000111001101010101
3
Ternary
1110111222000111
4
Quaternary
1100013031111
5
Quinary
20334013140
6
Senary
2030043021
8
Octal
120071525
10
Decimal
21001045
12
Duodecimal
7049471
16
Hexadecimal
1407355
20
Vigesimal
6b52c5
36
Base36
ci4id
md5
ade9f68dab9c18cc2e059859d1296365
sha1
49af02b6d65671223125331782126b0602474920
sha256
8ccec4362239f54468330428efec980e9bbf25732e12b8369b843872f3943c71
sha512
7747118665c54bf4515ec2d341905f467aa952e5d414607f44ee62611d42c3cdbc3d54c84ce90142ea8593fe13573e895ff95ae779058d0fd7f2f433e953b942
ripemd-160
8175bf6b3d0fb55d269b16fbfc5f809f202acb40
Diameter
42002090
Circumference
131953457.37942
Area
1.3855802481654E+15
Volume
3.8798177523776E+22
Surface area
5.5423209926614E+15
Circumference
131953457.37942
Perimeter
84004180
Area
441043891092025
Diagonal
29699962.663008
Surface area
2646263346552150
Volume
9.2623826037987E+21
Space diagonal
36374876.95204
Perimeter
63003135
Area
1.9097760693482E+14
Altitude
18187438.47602
Surface area
1.9097760693482E+14
Volume
1.0915822581817E+21
Height
9899987.5543359