21494909 (number)

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.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-four thousand nine hundred nine

Notation

Scientific notation 2.1494909 × 10^7
Engineering notation 2.1494909 × 10^6

Prime Factorization of 21494909

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.

Most popular turbo-numbers

Basic calculations (n = 21494909)

Multiplication

n×y
n×2 42989818
n×3 64484727
n×4 85979636
n×5 107474545

Division

n÷y
n÷2 10747454.5
n÷3 7164969.6666667
n÷3 5373727.25
n÷5 4298981.8

Exponentiation

ny
n2 462031112918281
n3 9.9313167273472E+21
n4 2.1347274930451E+29
n5 4.5885773202802E+36

Nth Root

y√n
2√n 4636.2602385975
3√n 278.04293886719
4√n 68.09008913636
5√n 29.272992547076

Divisors of 21494909

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 conversion 21494909

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

Cryptographic Hash Functions

md5 ced00c51d1935e77a8771bed67930680
sha1 53cee7bcf6b9734041ad970d7fa37c98ca2e443b
sha256 426a661d0622024c0e75b9c25751c78e4587a12ab5b6a5ac59205d5ae967246c
sha512 47a8ea09d2fbe87b7b1bf84cfd2ffbf01d199aad037420e24f551991659a89aa2429bcdb99cd17c4aaaad147a19a7fed4ca50bb29bc9bee2cacfe07bf25b73ba
ripemd-160 f650a6193e0c09694d08b9f650e979c17558a9c6

21494909 as geometric shapes

Circle

Radius = n
Diameter 42989818
Circumference 135056496.40796
Area 1.451513550074E+15

Sphere

Radius = n
Volume 4.1600202228143E+22
Surface area 5.806054200296E+15
Circumference 135056496.40796

Square

Length = n
Perimeter 85979636
Area 462031112918281
Diagonal 30398391.829776

Cube

Length = n
Surface area 2772186677509686
Volume 9.9313167273472E+21
Space diagonal 37230274.49207

Equilateral Triangle

Length = n
Perimeter 64484727
Area 2.0006534056301E+14
Altitude 18615137.246035

Triangular Pyramid

Length = n
Surface area 2.0006534056301E+14
Volume 1.1704169006698E+21
Height 10132797.276592