21554491 (number)

21554491 is an odd 8-digits composite number following 21554490 and preceding 21554492. In scientific notation, it is written as 2.1554491 × 10^7. The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors. There are 18221760 positive integers (up to 21554491) that are relatively prime to 21554491.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1554491 × 10^7
Engineering notation 2.1554491 × 10^6

Prime Factorization of 21554491

Prime Factorization 7 × 73 × 42181

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 21554491
Product of the distinct prime numbers

The prime factorization of 21554491 is 7 × 73 × 42181. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 21554491)

Multiplication

n×y
n×2 43108982
n×3 64663473
n×4 86217964
n×5 107772455

Division

n÷y
n÷2 10777245.5
n÷3 7184830.3333333
n÷3 5388622.75
n÷5 4310898.2

Exponentiation

ny
n2 464596082269081
n3 1.0014132073904E+22
n4 2.1584951965978E+29
n5 4.652526528861E+36

Nth Root

y√n
2√n 4642.6814450272
3√n 278.2996053967
4√n 68.13722510513
5√n 29.289203016327

Divisors of 21554491

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21554490
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21554491 can be divided by 8 positive divisors. The sum of these divisors (counting 21554491) is 1, the average is 0.125.

Base conversion 21554491

Base System Value
2 Binary 1010010001110010100111011
3 Ternary 1111120002012111
4 Quaternary 1102032110323
5 Quinary 21004220431
6 Senary 2045553151
8 Octal 122162473
10 Decimal 21554491
12 Duodecimal 72757b7
16 Hexadecimal 148e53b
20 Vigesimal 6ee64b
36 Base36 ctzjv

Cryptographic Hash Functions

md5 2896383b3440127b50a9c792e255e6fd
sha1 80c6033bfc4234bebffe0cf65488eaa2bd298331
sha256 a95db012bdc1d2a9abc6164424650451fdc7112f2c2b3d2d638ff1cb365b23d5
sha512 90123d60bb3535fd49aabe2affb168cb2d7485446eb9996581c7b6a75cc001a5228db49bc3087a32a78390639d523f0aee096dddc891eab55e40aa7e676058dc
ripemd-160 01be5ea82abeeee84783539434cfc65c84806ab9

21554491 as geometric shapes

Circle

Radius = n
Diameter 43108982
Circumference 135430861.15493
Area 1.4595716389431E+15

Sphere

Radius = n
Volume 4.1947098340607E+22
Surface area 5.8382865557726E+15
Circumference 135430861.15493

Square

Length = n
Perimeter 86217964
Area 464596082269081
Diagonal 30482653.502249

Cube

Length = n
Surface area 2787576493614486
Volume 1.0014132073904E+22
Space diagonal 37333473.543286

Equilateral Triangle

Length = n
Perimeter 64663473
Area 2.0117600487187E+14
Altitude 18666736.771643

Triangular Pyramid

Length = n
Surface area 2.0117600487187E+14
Volume 1.1801767828592E+21
Height 10160884.50075