21909863 is an odd 8-digits prime number following 21909862
and preceding 21909864 . In scientific notation, it is written as 2.1909863 × 10^7.
The sum of its digits is 38. It has a total of 1 prime factors and 2 positive divisors.
There are 21909862 positive integers (up to 21909863) that are relatively prime to 21909863.
21909863 has 2 divisors, whose sum is 21909864
The reverse of 21909863 is 36890912
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-one million nine hundred nine thousand eight hundred sixty-three
Scientific notation
2.1909863 × 10^7
Engineering notation
2.1909863 × 10^6
Prime Factorization
21909863
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21909863
Product of the distinct prime numbers
The prime factorization of 21909863 is 21909863.
Since it has a total of 1 prime factors.
8 , 3 , 80 , 71 , 128 , 174 , 6591 , 5888 , 49470 , 20314 , 326104 , 620966 , 3881386 , 499609 , 13424938 , 7552506 , 847907067 , 113636075 , 3258929296 , 5256099770
n×2
43819726
n×3
65729589
n×4
87639452
n×5
109549315
n÷2
10954931.5
n÷3
7303287.6666667
n÷3
5477465.75
n÷5
4381972.6
n2
480042096678769
n3
1.0517656572465E+22
n4
2.3044041458375E+29
n5
5.0489179131931E+36
2 √n
4680.7972611511
3 √n
279.82073133702
4 √n
68.416352293521
5 √n
29.385151382368
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21909864
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10954932
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4680.7973679705
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999087169
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21909863 can be divided by 2 positive divisors.
The sum of these divisors (counting 21909863) is 21909864, the average is 10954932.
Base
System
Value
2
Binary
1010011100101000101100111
3
Ternary
1112020010200102
4
Quaternary
1103211011213
5
Quinary
21102103423
6
Senary
2101334315
8
Octal
123450547
10
Decimal
21909863
12
Duodecimal
740739b
16
Hexadecimal
14e5167
20
Vigesimal
6gied3
36
Base36
d1lrb
md5
7ca98cf05bb7665339e5199329188e61
sha1
d36322bf7633c929f7f4eaea031a69c1c472e634
sha256
e09b5fa4e8cef103b170ce3a0a8f36fa61edd24be5fa90a15c75e9a4623f10b7
sha512
115656ac29ed44cd6befbc80638636eea5397d4a8c42a12935aa03cd0a6c2d94483e09881a225aed3828e91cc8f903648806596bdfd25de29199ee122986475e
ripemd-160
32084e0cc64f47f33e401811758196a6167732a1
Diameter
43819726
Circumference
137663729.28392
Area
1.5080967243399E+15
Volume
4.4056256828047E+22
Surface area
6.0323868973594E+15
Circumference
137663729.28392
Perimeter
87639452
Area
480042096678769
Diagonal
30985225.404336
Surface area
2880252580072614
Volume
1.0517656572465E+22
Space diagonal
37948995.902873
Perimeter
65729589
Area
2.0786432530488E+14
Altitude
18974497.951437
Surface area
2.0786432530488E+14
Volume
1.2395177140968E+21
Height
10328408.468112