21494909 is an odd 8-digits composite number following 21494908
and preceding 21494910 . In scientific notation, it is written as 2.1494909 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 19782144 positive integers (up to 21494909) that are relatively prime to 21494909.
21494909 has 8 divisors, whose sum is 22839840
The reverse of 21494909 is 90949412
Previous prime number is 10573
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
twenty-one million four hundred ninety-four thousand nine hundred nine
Scientific notation
2.1494909 × 10^7
Engineering notation
2.1494909 × 10^6
Prime Factorization
19 × 10573 × 107
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21494909
Product of the distinct prime numbers
The prime factorization of 21494909 is 19 × 10573 × 107.
Since it has a total of 3 prime factors.
2 , 8 , 6 , 74 , 562 , 111 , 9808 , 6896 , 40380 , 84141 , 571364 , 508041 , 6930940 , 2776029 , 71027507 , 18202567 , 224632380 , 599029804 , 9093952160 , 7364579906
n×2
42989818
n×3
64484727
n×4
85979636
n×5
107474545
n÷2
10747454.5
n÷3
7164969.6666667
n÷3
5373727.25
n÷5
4298981.8
n2
462031112918281
n3
9.9313167273472E+21
n4
2.1347274930451E+29
n5
4.5885773202802E+36
2 √n
4636.2602385975
3 √n
278.04293886719
4 √n
68.09008913636
5 √n
29.272992547076
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21494908
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21494909 can be divided by 8 positive divisors.
The sum of these divisors (counting 21494909) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001111111110001111101
3
Ternary
1111110001110202
4
Quaternary
1101333301331
5
Quinary
21000314114
6
Senary
2044413245
8
Octal
121776175
10
Decimal
21494909
12
Duodecimal
7247225
16
Hexadecimal
147fc7d
20
Vigesimal
6e6h59
36
Base36
cspkt
md5
ced00c51d1935e77a8771bed67930680
sha1
53cee7bcf6b9734041ad970d7fa37c98ca2e443b
sha256
426a661d0622024c0e75b9c25751c78e4587a12ab5b6a5ac59205d5ae967246c
sha512
47a8ea09d2fbe87b7b1bf84cfd2ffbf01d199aad037420e24f551991659a89aa2429bcdb99cd17c4aaaad147a19a7fed4ca50bb29bc9bee2cacfe07bf25b73ba
ripemd-160
f650a6193e0c09694d08b9f650e979c17558a9c6
Diameter
42989818
Circumference
135056496.40796
Area
1.451513550074E+15
Volume
4.1600202228143E+22
Surface area
5.806054200296E+15
Circumference
135056496.40796
Perimeter
85979636
Area
462031112918281
Diagonal
30398391.829776
Surface area
2772186677509686
Volume
9.9313167273472E+21
Space diagonal
37230274.49207
Perimeter
64484727
Area
2.0006534056301E+14
Altitude
18615137.246035
Surface area
2.0006534056301E+14
Volume
1.1704169006698E+21
Height
10132797.276592