Properties of the Number -121811

One Hundred Twenty-One Thousand Eight Hundred Eleven

Basics

Value: -121812 → -121811 → -121810

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 41 × 2971

Divisors: 1, 41, 2971, 121811

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

375 Try Today's Challenge

Representations

Binary: -11101101111010011

Octal: -355723

Duodecimal: -5A5AB

Hexadecimal: -1dbd3

Square: 14837919721

Square Root: 349.0143263535181

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

Index in A092243 where -n first appears. A269738

a(n) = binomial(n+3, 4) + binomial(n+1, 3) + 1. A368881