Properties of the Number -212226

Two Hundred Twelve Thousand Two Hundred Twenty-Six

Basics

Value: -212227 → -212226 → -212225

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 7 × 31 × 163

Divisors: 1, 2, 3, 6, 7, 14, 21, 31, 42, 62

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: Yes

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -110011110100000010

Octal: -636402

Duodecimal: -A2996

Hexadecimal: -33d02

Square: 45039875076

Square Root: 460.67993227402474

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

a(n) = (m(n)² + 3)*(m(n)² + 7)/32, where m(n) = 2·n - 1. A336535

Triangular numbers composed of digits {1,2,6}. A119103

Smallest triangular number containing exactly n 2's. A36519

Triangular numbers (A000217) in A353729. A370520