23991 (number)

23991 is an odd 5-digits composite number following 23990 and preceding 23992. In scientific notation, it is written as 2.3991 × 10^4. The sum of its digits is 24. It has a total of 2 prime factors and 4 positive divisors. There are 14520 positive integers (up to 23991) that are relatively prime to 23991.

Interesting facts

Basic properties

Name

Name twenty-three thousand nine hundred ninety-one

Notation

Scientific notation 2.3991 × 10^4
Engineering notation 2.3991 × 10^3

Prime Factorization of 23991

Prime Factorization 33 × 727

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 23991
Product of the distinct prime numbers

The prime factorization of 23991 is 33 × 727. Since it has a total of 2 prime factors.

Most popular turbo-numbers

4, 1, 24, 94, 494, 512, 996, 7597, 27960, 93009, 763433, 709084, 2429486, 1966011, 79584466, 79277887, 589611107, 913247924, 9612544672, 2777658093

Basic calculations (n = 23991)

Multiplication

n×y
n×2 47982
n×3 71973
n×4 95964
n×5 119955

Division

n÷y
n÷2 11995.5
n÷3 7997
n÷3 5997.75
n÷5 4798.2

Exponentiation

ny
n2 575568081
n3 13808453831271
n4 331278615866022561
n5 7.9477052732417E+21

Nth Root

y√n
2√n 154.8902837495
3√n 28.841385331425
4√n 12.44549250731
5√n 7.5163963009335

Divisors of 23991

1, 33, 727, 23991

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 -23990
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 23991 can be divided by 4 positive divisors. The sum of these divisors (counting 23991) is 1, the average is 0.25.

Base conversion 23991

Base System Value
2 Binary 101110110110111
3 Ternary 1012220120
4 Quaternary 11312313
5 Quinary 1231431
6 Senary 303023
8 Octal 56667
10 Decimal 23991
12 Duodecimal 11a73
16 Hexadecimal 5db7
20 Vigesimal 2jjb
36 Base36 iif

Cryptographic Hash Functions

md5 292f541e86a2c616f7dad12cd9c820b8
sha1 0223cae9d6eb0f2655321687ec49a2076c17dd19
sha256 27a43c80df043c92b86ad62184b4b4c6a4733627307230578bb4a52148b6c9ca
sha512 989b4f378d5e3b96c75023be0635d22db505b3e5e84de83e6bc1f1b4fabd3829f558a81842fc96fe91032dd723bd05448b9fcb6d489a6761c613d7eb68d42689
ripemd-160 9631408bf6cf8c89b697188981a1339f016b3634

23991 as geometric shapes

Circle

Radius = n
Diameter 47982
Circumference 150739.89870455
Area 1808200454.9104

Sphere

Radius = n
Volume 57840716151673
Surface area 7232801819.6415
Circumference 150739.89870455

Square

Length = n
Perimeter 95964
Area 575568081
Diagonal 33928.397574893

Cube

Length = n
Surface area 3453408486
Volume 13808453831271
Space diagonal 41553.630924385

Equilateral Triangle

Length = n
Perimeter 71973
Area 249228289.87673
Altitude 20776.815462192

Triangular Pyramid

Length = n
Surface area 249228289.87673
Volume 1627341890298.8
Height 11309.465858298