Properties of the Number -11850

Eleven Thousand Eight Hundred Fifty

Basics

Value: -11851 → -11850 → -11849

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 5 ² × 79

Divisors: 1, 2, 3, 5, 6, 10, 15, 25, 30, 50

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

5184 Try Today's Challenge

Representations

Binary: -10111001001010

Octal: -27112

Duodecimal: -6A36

Hexadecimal: -2e4a

Square: 140422500

Square Root: 108.8577052853862

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

T(n,k)=Number of nXk 0..4 arrays with each element·equal to the number of its horizontal and vertical neighbors equal to 2,0,1,1,1 for x=0,1,2,3,4. A197280

a(1) = 1; a(n) = ∑_k=1..n-1 a(floor((n-1)/k)). A78346

Numbers k such that prime(k+3)-(k+3)*τ(k+3) = prime(k-3)-(k-3)*τ(k-3) where τ(k) = A000005(k) is the number of divisors of k. A67355

a(n) = coefficient of xⁿ*yⁿ in ∏_n>=1 (1 - (xⁿ + yⁿ))³. A322214

Riordan array ((1-3x+x²)/(1-4x+3x²), x(1-2x)/(1-4x+3x²)). A147747

Place two n-gons with radii 1 and 2 concentrically, forming an annular area between them. Connect all the vertices with line segments that lie entirely within that area. Then a(n) is the number of regions in that figure. A337700

Digitally balanced numbers (A031443) whose squares are also digitally balanced. A353139

Nonsquarefree numbers k that are not divisible by p^p for any prime p, and for which A276085(k) is a multiple of A003557(k), where A276085 is the primorial base log-function. A391866

Intersection of A391845 and A391866. A392592

Largest number k such that φ(k) = A007374(n). A224532