Properties of the Number 51183

Fifty-One Thousand One Hundred Eighty-Three

Basics

Value: 51182 → 51183 → 51184

Parity: odd

Prime: No

Previous Prime: 51169

Next Prime: 51193

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 11 ² × 47

Divisors: 1, 3, 9, 11, 33, 47, 99, 121, 141, 363

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

5184 Try Today's Challenge

Representations

Binary: 1100011111101111

Octal: 143757

Duodecimal: 25753

Hexadecimal: c7ef

Square: 2619699489

Square Root: 226.23660181323444

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

Numbers k that divide the (left) concatenation of all numbers <= k written in base 25 (most significant digit on left). A29494

Non-palindromic solutions to σ(R(n)) = σ(n), where R = A004086 is digit-reversal. A85329

Expansion of (1-x)^-1/(1+x+x²-x³). A77908

Numbers k that divide the k-th little Schroeder number. A372903

Numbers k that divide the k-th Apéry number (A005258). A372943

Number of 6-element intersecting families of an n-element set. A51183

Number of nX6 0..4 arrays with each element·equal to the number its horizontal and vertical neighbors equal to 1,3,4,0,2 for x=0,1,2,3,4. A196644

Number of (n+1) X (2+1) 0..2 arrays with the maximum plus the upper median plus the minimum of every 2 X 2 subblock differing from its horizontal and vertical neighbors by exactly one. A237406