19491 (number)

19491 is an odd 5-digits composite number following 19490 and preceding 19492. In scientific notation, it is written as 1.9491 × 10^4. The sum of its digits is 24. It has a total of 3 prime factors and 8 positive divisors. There are 12672 positive integers (up to 19491) that are relatively prime to 19491.

Interesting facts

Basic properties

Name

Name nineteen thousand four hundred ninety-one

Notation

Scientific notation 1.9491 × 10^4
Engineering notation 1.9491 × 10^3

Prime Factorization of 19491

Prime Factorization 3 × 89 × 73

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 19491
Product of the distinct prime numbers

The prime factorization of 19491 is 3 × 89 × 73. Since it has a total of 3 prime factors.

Most popular turbo-numbers

9, 7, 11, 15, 638, 172, 6402, 5473, 2877, 17561, 947117, 946322, 8739591, 6174850, 54743730, 32064248, 412123892, 517159128, 1162891035, 723416139

Basic calculations (n = 19491)

Multiplication

n×y
n×2 38982
n×3 58473
n×4 77964
n×5 97455

Division

n÷y
n÷2 9745.5
n÷3 6497
n÷3 4872.75
n÷5 3898.2

Exponentiation

ny
n2 379899081
n3 7404612987771
n4 144323311744644561
n5 2.8130056692149E+21

Nth Root

y√n
2√n 139.61017154921
3√n 26.911921490428
4√n 11.815674824114
5√n 7.2105239597363

Divisors of 19491

1, 3, 73, 89, 219, 267, 6497, 19491

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 -19490
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 19491 can be divided by 8 positive divisors. The sum of these divisors (counting 19491) is 1, the average is 0.125.

Base conversion 19491

Base System Value
2 Binary 100110000100011
3 Ternary 222201220
4 Quaternary 10300203
5 Quinary 1110431
6 Senary 230123
8 Octal 46043
10 Decimal 19491
12 Duodecimal b343
16 Hexadecimal 4c23
20 Vigesimal 28eb
36 Base36 f1f

Cryptographic Hash Functions

md5 651f76e4e5691207b9b2af1f51a780aa
sha1 1fa6a7438e34cbf832b59cef6a1e276f473bd13f
sha256 60cec9c27f9c9844e6cc87b9417a00242507d03ac00063a52b06eb4c41d8cef2
sha512 322e350b84b7d4396a002598312e8360c35df0a72d756273eeb4d1b529dc9e4f54b44f7622617bd2c8bcb98fda30addd9a337179edeb043d56b9a82003927e60
ripemd-160 5d8ba9a63081fc6c1385f887befde93b2eafa19c

19491 as geometric shapes

Circle

Radius = n
Diameter 38982
Circumference 122465.56482224
Area 1193488161.9751

Sphere

Radius = n
Volume 31016370353409
Surface area 4773952647.9005
Circumference 122465.56482224

Square

Length = n
Perimeter 77964
Area 379899081
Diagonal 27564.436544214

Cube

Length = n
Surface area 2279394486
Volume 7404612987771
Space diagonal 33759.402290325

Equilateral Triangle

Length = n
Perimeter 58473
Area 164501127.51018
Altitude 16879.701145162

Triangular Pyramid

Length = n
Surface area 164501127.51018
Volume 872642009285.81
Height 9188.145514738