16491 (number)

16491 is an odd 5-digits composite number following 16490 and preceding 16492. In scientific notation, it is written as 1.6491 × 10^4. The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors. There are 10472 positive integers (up to 16491) that are relatively prime to 16491.

Interesting facts

Basic properties

Name

Name sixteen thousand four hundred ninety-one

Notation

Scientific notation 1.6491 × 10^4
Engineering notation 1.6491 × 10^3

Prime Factorization of 16491

Prime Factorization 3 × 23 × 239

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 16491
Product of the distinct prime numbers

The prime factorization of 16491 is 3 × 23 × 239. Since it has a total of 3 prime factors.

Most popular turbo-numbers

7, 4, 92, 79, 968, 861, 5761, 227, 58458, 83151, 205262, 106653, 3168768, 8294274, 97289388, 44618577, 770681475, 550597901, 6435926784, 5698903672

Basic calculations (n = 16491)

Multiplication

n×y
n×2 32982
n×3 49473
n×4 65964
n×5 82455

Division

n÷y
n÷2 8245.5
n÷3 5497
n÷3 4122.75
n÷5 3298.2

Exponentiation

ny
n2 271953081
n3 4484778258771
n4 73958478265392561
n5 1.2196492650746E+21

Nth Root

y√n
2√n 128.41728855571
3√n 25.453587239749
4√n 11.332135216088
5√n 6.9734774093076

Divisors of 16491

1, 3, 23, 69, 239, 717, 5497, 16491

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 -16490
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 16491 can be divided by 8 positive divisors. The sum of these divisors (counting 16491) is 1, the average is 0.125.

Base conversion 16491

Base System Value
2 Binary 100000001101011
3 Ternary 211121210
4 Quaternary 10001223
5 Quinary 1011431
6 Senary 204203
8 Octal 40153
10 Decimal 16491
12 Duodecimal 9663
16 Hexadecimal 406b
20 Vigesimal 214b
36 Base36 cq3

Cryptographic Hash Functions

md5 e7f75a0eb5d2448a933a050d60ff2bcc
sha1 64df3f2039c9b28962d4920abac461d09d6a716e
sha256 b4093bfce94dde1eb41d15c4ba9aed4085e9e5360dc237a43c29d9cefb00fd27
sha512 6790932b82ed367fddc11258ca41f6b50c511212313f8c0b443bacab450cb5c699945777a6b4b9ac90e8863c9e6719b5d4a1714e22143a738dd345f5a974d06d
ripemd-160 1f86d64e69148b5038750d1245b8cef556824297

16491 as geometric shapes

Circle

Radius = n
Diameter 32982
Circumference 103616.0089007
Area 854365801.39071

Sphere

Radius = n
Volume 18785795240979
Surface area 3417463205.5628
Circumference 103616.0089007

Square

Length = n
Perimeter 65964
Area 271953081
Diagonal 23321.795857095

Cube

Length = n
Surface area 1631718486
Volume 4484778258771
Space diagonal 28563.249867618

Equilateral Triangle

Length = n
Perimeter 49473
Area 117759138.39172
Altitude 14281.624933809

Triangular Pyramid

Length = n
Surface area 117759138.39172
Volume 528536186482.5
Height 7773.9319523649