21000486 is an even 8-digits composite number following 21000485
and preceding 21000487 . In scientific notation, it is written as 2.1000486 × 10^7.
The sum of its digits is 21. It has a total of 4 prime factors and 16 positive divisors.
There are 6461664 positive integers (up to 21000486) that are relatively prime to 21000486.
21000486 has 16 divisors, whose sum is 45231984
The reverse of 21000486 is 68400012
Previous prime number is 13
Is Prime? no
Number parity even
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty-one million four hundred eighty-six
Scientific notation
2.1000486 × 10^7
Engineering notation
2.1000486 × 10^6
Prime Factorization
2 × 3 × 13 × 269237
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21000486
Product of the distinct prime numbers
The prime factorization of 21000486 is 2 × 3 × 13 × 269237.
Since it has a total of 4 prime factors.
3 , 7 , 70 , 18 , 397 , 638 , 1113 , 882 , 94326 , 88841 , 440527 , 813230 , 8061602 , 8156324 , 87001651 , 28052192 , 768634936 , 292789092 , 803511225 , 5776041758
n×2
42000972
n×3
63001458
n×4
84001944
n×5
105002430
n÷2
10500243
n÷3
7000162
n÷3
5250121.5
n÷5
4200097.2
n2
441020412236196
n3
9.2616429928805E+21
n4
1.9449900400898E+29
n5
4.0845736107046E+36
2 √n
4582.6287215964
3 √n
275.89454593463
4 √n
67.695115936058
5 √n
29.137069446896
1 , 2 , 3 , 6 , 13 , 26 , 39 , 78 , 269237 , 538474 , 807711 , 1615422 , 3500081 , 7000162 , 10500243 , 21000486
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
-21000485
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 21000486 can be divided by 16 positive divisors.
The sum of these divisors (counting 21000486) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000000111000100100110
3
Ternary
1110111221020210
4
Quaternary
1100013010212
5
Quinary
20334003421
6
Senary
2030040250
8
Octal
120070446
10
Decimal
21000486
12
Duodecimal
7049086
16
Hexadecimal
1407126
20
Vigesimal
6b5146
36
Base36
ci42u
md5
b29c6fadb3c7dc9b321e49348d764ecb
sha1
13154296a6283a60591a4b075151afdb5de776dc
sha256
41a568e36a855aeb840a9a8eb2b1e20846e5f29fd19f234049c471a0024a7ceb
sha512
fa02f75680c47c7557ef8c319c3caedc17a13347a9c6c0db11b517faa860b2bd9da30569c7bea26e326bd6dd3c75b516e5fbaf80866e79334187d26e24b58a8e
ripemd-160
68e50e1d37b4af96fe6d3bb7636af39c5e784409
Diameter
42000972
Circumference
131949945.07883
Area
1.3855064871644E+15
Volume
3.8795079448806E+22
Surface area
5.5420259486575E+15
Circumference
131949945.07883
Perimeter
84001944
Area
441020412236196
Diagonal
29699172.117626
Surface area
2646122473417176
Volume
9.2616429928805E+21
Space diagonal
36373908.735639
Perimeter
63001458
Area
1.9096744029202E+14
Altitude
18186954.367819
Surface area
1.9096744029202E+14
Volume
1.0914950941991E+21
Height
9899724.0392088