21409909 is an odd 8-digits prime number following 21409908
and preceding 21409910 . In scientific notation, it is written as 2.1409909 × 10^7.
The sum of its digits is 34. It has a total of 1 prime factors and 2 positive divisors.
There are 21409908 positive integers (up to 21409909) that are relatively prime to 21409909.
21409909 has 2 divisors, whose sum is 21409910
The reverse of 21409909 is 90990412
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-one million four hundred nine thousand nine hundred nine
Scientific notation
2.1409909 × 10^7
Engineering notation
2.1409909 × 10^6
Prime Factorization
21409909
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21409909
Product of the distinct prime numbers
The prime factorization of 21409909 is 21409909.
Since it has a total of 1 prime factors.
8 , 3 , 92 , 51 , 438 , 535 , 1435 , 9236 , 86252 , 2124 , 765458 , 451403 , 1502278 , 3278758 , 4806390 , 83996116 , 942847552 , 384647436 , 5707330982 , 6455512314
n×2
42819818
n×3
64229727
n×4
85639636
n×5
107049545
n÷2
10704954.5
n÷3
7136636.3333333
n÷3
5352477.25
n÷5
4281981.8
n2
458384203388281
n3
9.8139640815806E+21
n4
2.1011607791591E+29
n5
4.4985661076165E+36
2 √n
4627.0842871078
3 √n
277.6759547452
4 √n
68.022674801185
5 √n
29.249804270286
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21409910
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10704955
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4627.0843951672
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999065853
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21409909 can be divided by 2 positive divisors.
The sum of these divisors (counting 21409909) is 21409910, the average is 10704955.
Base
System
Value
2
Binary
1010001101011000001110101
3
Ternary
1111021201212121
4
Quaternary
1101223001311
5
Quinary
20440104114
6
Senary
2042515541
8
Octal
121530165
10
Decimal
21409909
12
Duodecimal
7205bb1
16
Hexadecimal
146b075
20
Vigesimal
6dg4f9
36
Base36
cqvzp
md5
92cf4f0ddda9162b148d381998fe2b36
sha1
769cab2f691397d3d8dd9d9cefc4688ea3a5ead3
sha256
cfff6b3fe5c09b39b4910f6339f112b4a3a97ff1b38f324c662312f7f121faf6
sha512
c9b8eb4645f58a0cebaf31a5936402033195b00fe9ea5013fb205a578a10385e506cee9d071323a6746c4c7c9e7b839d403621b3c8a60bd7bc2ce78ad3e0e935
ripemd-160
0b445d1762daa423e9b6d4338153c7a215aa1340
Diameter
42819818
Circumference
134522425.65685
Area
1.4400564458862E+15
Volume
4.110863661505E+22
Surface area
5.7602257835449E+15
Circumference
134522425.65685
Perimeter
85639636
Area
458384203388281
Diagonal
30278183.676974
Surface area
2750305220329686
Volume
9.8139640815806E+21
Space diagonal
37083050.173426
Perimeter
64229727
Area
1.9848618241387E+14
Altitude
18541525.086713
Surface area
1.9848618241387E+14
Volume
1.1565867587345E+21
Height
10092727.892325