Properties of the Number 1216

One Thousand Two Hundred Sixteen

Basics

Value: 1215 → 1216 → 1217

Parity: even

Prime: No

Previous Prime: 1213

Next Prime: 1217

Digit Sum: 10

Digital Root: 1

Palindrome: No

Factorization: 2 ⁶ × 19

Divisors: 1, 2, 4, 8, 16, 19, 32, 38, 64, 76

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011000000

Octal: 2300

Duodecimal: 854

Hexadecimal: 4c0

Square: 1478656

Square Root: 34.87119154832539

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 that are the sum of 2 positive cubes. A3325

9-gonal (or enneagonal or nonagonal) numbers: a(n) = n*(7·n-5)/2. A1106

Increasing sequence generated by these rules: a(1)=1, and if·is in a then 3x-2 and 4x-2 are in a. A191113

Describe n. Also called the "Say What You See" or "Look and Say" sequence LS(n). A45918

Numbers that are divisible by exactly 7 primes counting multiplicity. A46308

Generalized 9-gonal (or enneagonal) numbers: m*(7·m - 5)/2 with m = 0, 1, -1, 2, -2, 3, -3, ... A118277

Generalized 12-gonal numbers: k*(5·k-4) for k = 0, +-1, +-2, ... A195162

12-gonal (or dodecagonal) numbers: a(n) = n*(5·n-4). A51624

Numbers that are the sum of 6 positive 5th powers. A3351

Numbers that are the sum of 7 positive 5th powers. A3352