21542281 (number)

21542281 is an odd 8-digits composite number following 21542280 and preceding 21542282. In scientific notation, it is written as 2.1542281 × 10^7. The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors. There are 20275072 positive integers (up to 21542281) that are relatively prime to 21542281.

Interesting facts

Basic properties

Name

Name twenty-one million five hundred forty-two thousand two hundred eighty-one

Notation

Scientific notation 2.1542281 × 10^7
Engineering notation 2.1542281 × 10^6

Prime Factorization of 21542281

Prime Factorization 17 × 1267193

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 21542281
Product of the distinct prime numbers

The prime factorization of 21542281 is 17 × 1267193. Since it has a total of 2 prime factors.

Most popular turbo-numbers

5, 9, 68, 77, 763, 1000, 6442, 4798, 9950, 2649, 956956, 787988, 7062340, 9915912, 98889279, 15893058, 993150278, 529247533, 7334291462, 1858327609

Basic calculations (n = 21542281)

Multiplication

n×y
n×2 43084562
n×3 64626843
n×4 86169124
n×5 107711405

Division

n÷y
n÷2 10771140.5
n÷3 7180760.3333333
n÷3 5385570.25
n÷5 4308456.2

Exponentiation

ny
n2 464069870682961
n3 9.997123557886E+21
n4 2.153608448757E+29
n5 4.6393638367097E+36

Nth Root

y√n
2√n 4641.3662859119
3√n 278.24704589353
4√n 68.127573609457
5√n 29.285883965748

Divisors of 21542281

1, 17, 1267193, 21542281

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 -21542280
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 21542281 can be divided by 4 positive divisors. The sum of these divisors (counting 21542281) is 1, the average is 0.25.

Base conversion 21542281

Base System Value
2 Binary 1010010001011010110001001
3 Ternary 1111112110110021
4 Quaternary 1102023112021
5 Quinary 21003323111
6 Senary 2045420441
8 Octal 122132611
10 Decimal 21542281
12 Duodecimal 726a721
16 Hexadecimal 148b589
20 Vigesimal 6ecfe1
36 Base36 ctq4p

Cryptographic Hash Functions

md5 e5b93c642f5e76a6767c59f8df911f75
sha1 201174a4c8a8dfdf5545c1ee92c366c5b76315dd
sha256 19f6dfd7dfad922fd7144fdafa64f159945b99df08157601f6bd18eb0820f000
sha512 a30234dfb11bbc0e8fcc005b4283d8e60bcd5707026c79120dd2916b857ad10721fec2f5fd5b4b456965113e58a73bf3510f4382afb9b49d068ce26c8150aec0
ripemd-160 6e002d0a9c699b9bad15b11a80b5920f1cc60e9c

21542281 as geometric shapes

Circle

Radius = n
Diameter 43084562
Circumference 135354143.46233
Area 1.45791849649E+15

Sphere

Radius = n
Volume 4.1875853235312E+22
Surface area 5.8316739859598E+15
Circumference 135354143.46233

Square

Length = n
Perimeter 86169124
Area 464069870682961
Diagonal 30465385.954652

Cube

Length = n
Surface area 2784419224097766
Volume 9.997123557886E+21
Space diagonal 37312325.202926

Equilateral Triangle

Length = n
Perimeter 64626843
Area 2.009481485712E+14
Altitude 18656162.601463

Triangular Pyramid

Length = n
Surface area 2.009481485712E+14
Volume 1.1781723100235E+21
Height 10155128.651551