23 (number)

23 is an odd 2-digits prime number following 22 and preceding 24. In scientific notation, it is written as 2.3 × 10^1. The sum of its digits is 5. It has a total of 1 prime factors and 2 positive divisors. There are 22 positive integers (up to 23) that are relatively prime to 23.

Interesting facts

Basic properties

Name

Name twenty-three

Notation

Scientific notation 2.3 × 10^1
Engineering notation 2.3 × 10^0

Prime Factorization of 23

Prime Factorization 23

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 23
Product of the distinct prime numbers

The prime factorization of 23 is 23. Since it has a total of 1 prime factors.

Most popular turbo-numbers

Basic calculations (n = 23)

Multiplication

n×y
n×2 46
n×3 69
n×4 92
n×5 115

Division

n÷y
n÷2 11.5
n÷3 7.6666666666667
n÷3 5.75
n÷5 4.6

Exponentiation

ny
n2 529
n3 12167
n4 279841
n5 6436343

Nth Root

y√n
2√n 4.7958315233127
3√n 2.8438669798516
4√n 2.1899387030948
5√n 1.8721712305549

Divisors of 23

1, 23

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 24
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 12
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 4.8989794855664
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9166666666667
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 23 can be divided by 2 positive divisors. The sum of these divisors (counting 23) is 24, the average is 12.

Base conversion 23

Base System Value
2 Binary 10111
3 Ternary 212
4 Quaternary 113
5 Quinary 43
6 Senary 35
8 Octal 27
10 Decimal 23
12 Duodecimal 1b
16 Hexadecimal 17
20 Vigesimal 13
36 Base36 n

Cryptographic Hash Functions

md5 37693cfc748049e45d87b8c7d8b9aacd
sha1 d435a6cdd786300dff204ee7c2ef942d3e9034e2
sha256 535fa30d7e25dd8a49f1536779734ec8286108d115da5045d77f3b4185d8f790
sha512 6ff334e1051a09e90127ba4e309e026bb830163a2ce3a355af2ce2310ff6e7e9830d20196a3472bfc8632fd3b60cb56102a84fae70ab1a32942055eb40022225
ripemd-160 cd220e1b7bd30595052c5d85b1d5abd091ac3da8

23 as geometric shapes

Circle

Radius = n
Diameter 46
Circumference 144.51326206513
Area 1661.902513749

Sphere

Radius = n
Volume 50965.010421636
Surface area 6647.610054996
Circumference 144.51326206513

Square

Length = n
Perimeter 92
Area 529
Diagonal 32.526911934581

Cube

Length = n
Surface area 3174
Volume 12167
Space diagonal 39.837168574084

Equilateral Triangle

Length = n
Perimeter 69
Area 229.06371930098
Altitude 19.918584287042

Triangular Pyramid

Length = n
Surface area 229.06371930098
Volume 1433.8947011161
Height 10.842303978194