21287411 is an odd 8-digits prime number following 21287410
and preceding 21287412 . In scientific notation, it is written as 2.1287411 × 10^7.
The sum of its digits is 26. It has a total of 1 prime factors and 2 positive divisors.
There are 21287410 positive integers (up to 21287411) that are relatively prime to 21287411.
21287411 has 2 divisors, whose sum is 21287412
The reverse of 21287411 is 11478212
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million two hundred eighty-seven thousand four hundred eleven
Scientific notation
2.1287411 × 10^7
Engineering notation
2.1287411 × 10^6
Prime Factorization
21287411
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21287411
Product of the distinct prime numbers
The prime factorization of 21287411 is 21287411.
Since it has a total of 1 prime factors.
9 , 7 , 58 , 83 , 729 , 533 , 854 , 8258 , 95813 , 87594 , 163875 , 52195 , 1394819 , 9032711 , 73684632 , 91667635 , 520756780 , 237868678 , 1891660363 , 9618144391
n×2
42574822
n×3
63862233
n×4
85149644
n×5
106437055
n÷2
10643705.5
n÷3
7095803.6666667
n÷3
5321852.75
n÷5
4257482.2
n2
453153867082921
n3
9.6464726148335E+21
n4
2.0534842725221E+29
n5
4.3713363691213E+36
2 √n
4613.8282369416
3 √n
277.14536197879
4 √n
67.925166447655
5 √n
29.216256523591
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21287412
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10643706
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4613.8283453115
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999060478
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21287411 can be divided by 2 positive divisors.
The sum of these divisors (counting 21287411) is 21287412, the average is 10643706.
Base
System
Value
2
Binary
1010001001101000111110011
3
Ternary
1111001111211122
4
Quaternary
1101031013303
5
Quinary
20422144121
6
Senary
2040132455
8
Octal
121150763
10
Decimal
21287411
12
Duodecimal
716712b
16
Hexadecimal
144d1f3
20
Vigesimal
6d0iab
36
Base36
co9gz
md5
8cae5d8218af4fb155dea248fde327b0
sha1
c1192546fd617bb646817b92eabc6e64beb54ef1
sha256
50078e630c450d05c45388e824376390b136af605973ca929d1cba26f70ed461
sha512
0a1983227953df131ff9af65814cfeeb45f9eacc9510388fce4a4a3cc97b211d934b4141708266634f9dce41086ee972e3aadc5907513c43551bff88dae4b6df
ripemd-160
57ccf16ea032a5cbbe259a6a6f5bdd3189ce768e
Diameter
42574822
Circumference
133752748.02309
Area
1.4236248597735E+15
Volume
4.0407049999755E+22
Surface area
5.694499439094E+15
Circumference
133752748.02309
Perimeter
85149644
Area
453153867082921
Diagonal
30104945.34401
Surface area
2718923202497526
Volume
9.6464726148335E+21
Space diagonal
36870877.413601
Perimeter
63862233
Area
1.9622138035848E+14
Altitude
18435438.7068
Surface area
1.9622138035848E+14
Volume
1.1368477000799E+21
Height
10034981.781337