21551291 (number)

21551291 is an odd 8-digits composite number following 21551290 and preceding 21551292. In scientific notation, it is written as 2.1551291 × 10^7. The sum of its digits is 26. It has a total of 2 prime factors and 4 positive divisors. There are 20283552 positive integers (up to 21551291) that are relatively prime to 21551291.

Interesting facts

Basic properties

Name

Name twenty-one million five hundred fifty-one thousand two hundred ninety-one

Notation

Scientific notation 2.1551291 × 10^7
Engineering notation 2.1551291 × 10^6

Prime Factorization of 21551291

Prime Factorization 17 × 1267723

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 21551291
Product of the distinct prime numbers

The prime factorization of 21551291 is 17 × 1267723. Since it has a total of 2 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21551291)

Multiplication

n×y
n×2 43102582
n×3 64653873
n×4 86205164
n×5 107756455

Division

n÷y
n÷2 10775645.5
n÷3 7183763.6666667
n÷3 5387822.75
n÷5 4310258.2

Exponentiation

ny
n2 464458143766681
n3 1.0009672613636E+22
n4 2.1572136731119E+29
n5 4.6490739618414E+36

Nth Root

y√n
2√n 4642.336803809
3√n 278.28583250807
4√n 68.1346960352
5√n 29.288333304155

Divisors of 21551291

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21551290
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21551291 can be divided by 4 positive divisors. The sum of these divisors (counting 21551291) is 1, the average is 0.25.

Base conversion 21551291

Base System Value
2 Binary 1010010001101100010111011
3 Ternary 1111112220210222
4 Quaternary 1102031202323
5 Quinary 21004120131
6 Senary 2045530255
8 Octal 122154273
10 Decimal 21551291
12 Duodecimal 727398b
16 Hexadecimal 148d8bb
20 Vigesimal 6edi4b
36 Base36 ctx2z

Cryptographic Hash Functions

md5 355e48602eacf323db886e6474fda4b4
sha1 0a343effd2a8a6ddffeac5e0fdce9677ba9a3941
sha256 cce008bb7dfad6777bee5760b53c4a77e88c03e09601721d0baacc12680969c5
sha512 9ebfa903d4339158c48f60a094fd468063bd3ceb4e8d769385d2fec01cfbb1eebf4f36517effbf6867b25de3762996b9fe578b1976a5cc3be1c2b87ef8759a40
ripemd-160 eeb8f7c8f4ef763aa6e0ae85a06b11a14f2dd4d8

21551291 as geometric shapes

Circle

Radius = n
Diameter 43102582
Circumference 135410754.96195
Area 1.4591382923574E+15

Sphere

Radius = n
Volume 4.1928418597115E+22
Surface area 5.8365531694294E+15
Circumference 135410754.96195

Square

Length = n
Perimeter 86205164
Area 464458143766681
Diagonal 30478128.018849

Cube

Length = n
Surface area 2786748862600086
Volume 1.0009672613636E+22
Space diagonal 37327930.980702

Equilateral Triangle

Length = n
Perimeter 64653873
Area 2.0111627574826E+14
Altitude 18663965.490351

Triangular Pyramid

Length = n
Surface area 2.0111627574826E+14
Volume 1.1796512304265E+21
Height 10159376.006283