21505854 (number)

21505854 is an even 8-digits composite number following 21505853 and preceding 21505855. In scientific notation, it is written as 2.1505854 × 10^7. The sum of its digits is 30. It has a total of 5 prime factors and 32 positive divisors. There are 6948864 positive integers (up to 21505854) that are relatively prime to 21505854.

Interesting facts

Basic properties

Name

Name twenty-one million five hundred five thousand eight hundred fifty-four

Notation

Scientific notation 2.1505854 × 10^7
Engineering notation 2.1505854 × 10^6

Prime Factorization of 21505854

Prime Factorization 2 × 3 × 769 × 59 × 79

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 21505854
Product of the distinct prime numbers

The prime factorization of 21505854 is 2 × 3 × 769 × 59 × 79. Since it has a total of 5 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21505854)

Multiplication

n×y
n×2 43011708
n×3 64517562
n×4 86023416
n×5 107529270

Division

n÷y
n÷2 10752927
n÷3 7168618
n÷3 5376463.5
n÷5 4301170.8

Exponentiation

ny
n2 462501756269316
n3 9.9464952450715E+21
n4 2.139078745522E+29
n5 4.60027151957E+36

Nth Root

y√n
2√n 4637.4404578388
3√n 278.09012311894
4√n 68.098755185677
5√n 29.275973045081

Divisors of 21505854

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21505853
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21505854 can be divided by 32 positive divisors. The sum of these divisors (counting 21505854) is 1, the average is 0.03125.

Base conversion 21505854

Base System Value
2 Binary 1010010000010011100111110
3 Ternary 1111110121111010
4 Quaternary 1102002130332
5 Quinary 21001141404
6 Senary 2044540050
8 Octal 122023476
10 Decimal 21505854
12 Duodecimal 7251626
16 Hexadecimal 148273e
20 Vigesimal 6e84ce
36 Base36 csy0u

Cryptographic Hash Functions

md5 517d9c659ddb8ee5d0a7b587794f4d75
sha1 4c3021a43b2c5feec8d3a9acfc59a3791b69e62f
sha256 c71c458a3336a4f195c065d5ab693f649e245252ddb67cdb1e7006e01c29901a
sha512 0b04ae5402ba6561dfca99b309262ea97469692510481606aabd74704e0b1a0eb21d89ffa991fa5a0d6b69cb86245289834749b68869dadb9d4200d63c251d4b
ripemd-160 e79cca27a8aeecaa5efe3c7a5f597db5c2fce7e7

21505854 as geometric shapes

Circle

Radius = n
Diameter 43011708
Circumference 135125265.87115
Area 1.4529921197681E+15

Sphere

Radius = n
Volume 4.166378185451E+22
Surface area 5.8119684790722E+15
Circumference 135125265.87115

Square

Length = n
Perimeter 86023416
Area 462501756269316
Diagonal 30413870.397216

Cube

Length = n
Surface area 2775010537615896
Volume 9.9464952450715E+21
Space diagonal 37249231.788158

Equilateral Triangle

Length = n
Perimeter 64517562
Area 2.0026913511207E+14
Altitude 18624615.894079

Triangular Pyramid

Length = n
Surface area 2.0026913511207E+14
Volume 1.1722057061383E+21
Height 10137956.799072