Properties of the Number -214215

Two Hundred Fourteen Thousand Two Hundred Fifteen

Basics

Value: -214216 → -214215 → -214214

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 5 × 14281

Divisors: 1, 3, 5, 15, 14281, 42843, 71405, 214215

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8109 Try Today's Challenge

Representations

Binary: -110100010011000111

Octal: -642307

Duodecimal: -A3B73

Hexadecimal: -344c7

Square: 45888066225

Square Root: 462.8336634256415

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

Array read by antidiagonals: T(n,k) is the number of sensed k-regular combinatorial maps with n vertices, n >= 0, k >= 1. A380626

a(n) = ∑_{k=0..floor(n/6)} binomial(2·k,k) * binomial(n-3·k,3·k). A393250

Lucky numbers that are decimal concatenations of n with n + 1. A32651