21004885 is an odd 8-digits composite number following 21004884
and preceding 21004886 . In scientific notation, it is written as 2.1004885 × 10^7.
The sum of its digits is 28. It has a total of 4 prime factors and 16 positive divisors.
There are 15015040 positive integers (up to 21004885) that are relatively prime to 21004885.
21004885 has 16 divisors, whose sum is 27967680
The reverse of 21004885 is 58840012
Previous prime number is 59
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million four thousand eight hundred eighty-five
Scientific notation
2.1004885 × 10^7
Engineering notation
2.1004885 × 10^6
Prime Factorization
11 × 5 × 59 × 6473
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21004885
Product of the distinct prime numbers
The prime factorization of 21004885 is 11 × 5 × 59 × 6473.
Since it has a total of 4 prime factors.
10 , 5 , 55 , 28 , 422 , 478 , 7102 , 8702 , 8666 , 9945 , 273870 , 479868 , 6562591 , 6383095 , 21994170 , 90431472 , 832423927 , 494880978 , 2394495035 , 5323494913
n×2
42009770
n×3
63014655
n×4
84019540
n×5
105024425
n÷2
10502442.5
n÷3
7001628.3333333
n÷3
5251221.25
n÷5
4200977
n2
441205193863225
n3
9.2674643584997E+21
n4
1.9466202309189E+29
n5
4.0888534089124E+36
2 √n
4583.10866116
3 √n
275.91380859003
4 √n
67.69866070433
5 √n
29.138290020843
1 , 5 , 11 , 55 , 59 , 295 , 649 , 3245 , 6473 , 32365 , 71203 , 356015 , 381907 , 1909535 , 4200977 , 21004885
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21004884
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21004885 can be divided by 16 positive divisors.
The sum of these divisors (counting 21004885) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000001000001001010101
3
Ternary
1110112011021201
4
Quaternary
1100020021111
5
Quinary
20334124020
6
Senary
2030112501
8
Octal
120101125
10
Decimal
21004885
12
Duodecimal
704b731
16
Hexadecimal
1408255
20
Vigesimal
6b5c45
36
Base36
ci7h1
md5
49ff038db5539724fecf210bc00fa4db
sha1
667b0f6307e6384d72098130df77cdb129d0a7df
sha256
c002093fe0652f02ac1d11db424ba6235b357769c801638cef753c291f29f94f
sha512
c9e48bb97cd3dd0eb6b6f68049729a8cd170c212b6d5258d59427dfee816b2ae90bf667d4b464de03a698e08e70347704ad53c9deb6409dc0829b7b8da3e9f66
ripemd-160
f0a0c0c3e2c2b5ef15a92c4d65bf5d2c0b914b06
Diameter
42009770
Circumference
131977584.811
Area
1.3860869957664E+15
Volume
3.8819463928091E+22
Surface area
5.5443479830655E+15
Circumference
131977584.811
Perimeter
84019540
Area
441205193863225
Diagonal
29705393.243087
Surface area
2647231163179350
Volume
9.2674643584997E+21
Space diagonal
36381528.027141
Perimeter
63014655
Area
1.910474530836E+14
Altitude
18190764.013571
Surface area
1.910474530836E+14
Volume
1.0921811487166E+21
Height
9901797.7476957