Properties of the Number 1312

One Thousand Three Hundred Twelve

Basics

Value: 1311 → 1312 → 1313

Parity: even

Prime: No

Previous Prime: 1307

Next Prime: 1319

Digit Sum: 7

Digital Root: 7

Palindrome: No

Factorization: 2 ⁵ × 41

Divisors: 1, 2, 4, 8, 16, 32, 41, 82, 164, 328

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10100100000

Octal: 2440

Duodecimal: 914

Hexadecimal: 520

Square: 1721344

Square Root: 36.22154055254967

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

Y-toothpick sequence (see Comments lines for definition). A160120

Triangle T(n,k) read by rows, giving number of graphs with n nodes (n >= 1) and k edges (0 <= k <= n(n-1)/2). A8406

Numbers that are the sum of 2 positive 4th powers. A3336

Numbers that are divisible by exactly 6 primes with multiplicity. A46306

Mian-Chowla sequence (a B₂ sequence): a(1) = 1; for n>1, a(n) = smallest number > a(n-1) such that the pairwise sums of elements are all distinct. A5282

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

Primitive abundant numbers (abundant numbers all of whose proper divisors are deficient numbers). A71395

Coordination sequence for "tcd" 3D uniform tiling. A299287

Numbers k such that the k-th composition in standard order is strictly increasing. A333255

Number of integer partitions of n with no adjacent parts having quotient > 2. A342094