21249909 (number)

21249909 is an odd 8-digits composite number following 21249908 and preceding 21249910. In scientific notation, it is written as 2.1249909 × 10^7. The sum of its digits is 36. It has a total of 4 prime factors and 12 positive divisors. There are 13995432 positive integers (up to 21249909) that are relatively prime to 21249909.

Interesting facts

Basic properties

Name

Name twenty-one million two hundred forty-nine thousand nine hundred nine

Notation

Scientific notation 2.1249909 × 10^7
Engineering notation 2.1249909 × 10^6

Prime Factorization of 21249909

Prime Factorization 3 × 3 × 83 × 28447

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 7083303
Product of the distinct prime numbers

The prime factorization of 21249909 is 3 × 3 × 83 × 28447. Since it has a total of 4 prime factors.

Most popular turbo-numbers

10, 6, 42, 89, 393, 853, 3608, 6193, 32031, 55968, 962694, 105490, 2974131, 6022984, 21450710, 81872147, 105823239, 954751900, 576123252, 1068307709

Basic calculations (n = 21249909)

Multiplication

n×y
n×2 42499818
n×3 63749727
n×4 84999636
n×5 106249545

Division

n÷y
n÷2 10624954.5
n÷3 7083303
n÷3 5312477.25
n÷5 4249981.8

Exponentiation

ny
n2 451558632508281
n3 9.5955798489654E+21
n4 2.0390519859275E+29
n5 4.3329669147228E+36

Nth Root

y√n
2√n 4609.7623583
3√n 276.98251745763
4√n 67.895230747822
5√n 29.20595521486

Divisors of 21249909

1, 3, 9, 83, 249, 747, 28447, 85341, 256023, 2361101, 7083303, 21249909

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21249908
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21249909 can be divided by 12 positive divisors. The sum of these divisors (counting 21249909) is 1, the average is 0.083333333333333.

Base conversion 21249909

Base System Value
2 Binary 1010001000011111101110101
3 Ternary 1110222121101200
4 Quaternary 1101003331311
5 Quinary 20414444114
6 Senary 2035243113
8 Octal 121037565
10 Decimal 21249909
12 Duodecimal 7149499
16 Hexadecimal 1443f75
20 Vigesimal 6cg4f9
36 Base36 cngj9

Cryptographic Hash Functions

md5 1e864c3ca3af73d7fdb059b5acf62fa5
sha1 dcfe201a50a93e507f2371985814748692f98b5a
sha256 a8eda43df57da28609551bd06b87c63d350cccaa9fa611574512bd4340dd9307
sha512 08a502c146aaf0188a81d3ce1aad2830e1ad812044e4f5f7f7c3a359b5f6f1feee3549f6bcc77273c9e55416bea0f08c7b4baa8f6bbe0c9f956727a7a9566b2e
ripemd-160 00b087b1e0cc0c8af9c3043de1963ddbc53e4637

21249909 as geometric shapes

Circle

Radius = n
Diameter 42499818
Circumference 133517116.0077
Area 1.4186132825531E+15

Sphere

Radius = n
Volume 4.0193870880592E+22
Surface area 5.6744531302123E+15
Circumference 133517116.0077

Square

Length = n
Perimeter 84999636
Area 451558632508281
Diagonal 30051909.506994

Cube

Length = n
Surface area 2709351795049686
Volume 9.5955798489654E+21
Space diagonal 36805922.044215

Equilateral Triangle

Length = n
Perimeter 63749727
Area 1.9553062352517E+14
Altitude 18402961.022108

Triangular Pyramid

Length = n
Surface area 1.9553062352517E+14
Volume 1.1308499301034E+21
Height 10017303.168998