21609921 (number)

21609921 is an odd 8-digits composite number following 21609920 and preceding 21609922. In scientific notation, it is written as 2.1609921 × 10^7. The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors. There are 14085120 positive integers (up to 21609921) that are relatively prime to 21609921.

Interesting facts

Basic properties

Name

Name twenty-one million six hundred nine thousand nine hundred twenty-one

Notation

Scientific notation 2.1609921 × 10^7
Engineering notation 2.1609921 × 10^6

Prime Factorization of 21609921

Prime Factorization 3 × 61 × 449 × 263

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21609921
Product of the distinct prime numbers

The prime factorization of 21609921 is 3 × 61 × 449 × 263. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 1, 88, 8, 347, 83, 661, 9732, 22206, 37914, 422086, 914868, 5303592, 3682775, 9553100, 92287132, 37649853, 174645418, 4115726205, 7925073387

Basic calculations (n = 21609921)

Multiplication

n×y
n×2 43219842
n×3 64829763
n×4 86439684
n×5 108049605

Division

n÷y
n÷2 10804960.5
n÷3 7203307
n÷3 5402480.25
n÷5 4321984.2

Exponentiation

ny
n2 466988685626241
n3 1.0091588604277E+22
n4 2.1807843250292E+29
n5 4.712657698192E+36

Nth Root

y√n
2√n 4648.6472225799
3√n 278.53796164121
4√n 68.180988718116
5√n 29.304251695357

Divisors of 21609921

1, 3, 61, 183, 263, 449, 789, 1347, 16043, 27389, 48129, 82167, 118087, 354261, 7203307, 21609921

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21609920
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21609921 can be divided by 16 positive divisors. The sum of these divisors (counting 21609921) is 1, the average is 0.0625.

Base conversion 21609921

Base System Value
2 Binary 1010010011011110111000001
3 Ternary 1111122220020110
4 Quaternary 1102123313001
5 Quinary 21013004141
6 Senary 2051101533
8 Octal 122336701
10 Decimal 21609921
12 Duodecimal 72a18a9
16 Hexadecimal 149bdc1
20 Vigesimal 6f14g1
36 Base36 cv6bl

Cryptographic Hash Functions

md5 cac302eb98915b7f7ab1823c755a7121
sha1 33d82057b7e267f9beba6e6a08a62f988832e41b
sha256 0b7bbd3cff1be87173009113dc57438c0ee1719025a6ed4a6eea94e755f2f138
sha512 d7bebb3cd56d5e24cfe162c3544e71885fd0281f0d8f9973830533a39bcc7ad1fa76b782ba65bc9170bf820b7c165ab7a8f56d0f0a56b07d08e811f42854c59d
ripemd-160 ef7c603373c8a8745f46d5346fb026499b416443

21609921 as geometric shapes

Circle

Radius = n
Diameter 43219842
Circumference 135779138.11651
Area 1.467088224073E+15

Sphere

Radius = n
Volume 4.2271547496329E+22
Surface area 5.8683528962918E+15
Circumference 135779138.11651

Square

Length = n
Perimeter 86439684
Area 466988685626241
Diagonal 30561043.360011

Cube

Length = n
Surface area 2801932113757446
Volume 1.0091588604277E+22
Space diagonal 37429481.11955

Equilateral Triangle

Length = n
Perimeter 64829763
Area 2.0221203251611E+14
Altitude 18714740.559775

Triangular Pyramid

Length = n
Surface area 2.0221203251611E+14
Volume 1.1893051225048E+21
Height 10187014.453337