Properties of the Number 1347

One Thousand Three Hundred Forty-Seven

Basics

Value: 1346 → 1347 → 1348

Parity: odd

Prime: No

Previous Prime: 1327

Next Prime: 1361

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 449

Divisors: 1, 3, 449, 1347

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10101000011

Octal: 2503

Duodecimal: 943

Hexadecimal: 543

Square: 1814409

Square Root: 36.701498607005135

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

G.f. A(x) satisfies A(x) = 1 + x·A(x)/(1 - x·A(x)²). A106228

Numbers m such that the Bernoulli number B_2·m has denominator 42. A51227

Nonascending wiggly sums: number of sums adding to n in which terms alternately do not increase and do not decrease. A129853

Expansion of 1/((1-x)²*(1-x²)*(1-x³)). A601

Number of inequivalent ways (mod D₄) a pair of checkers can be placed on an n X n board. A14409

a(n) = floor(4ⁿ/((1+sqrt(5))/2)^2·n). A240523

Non-palindromic balanced numbers in base 2. A256082

Numbers k such that k, k+2, k+4 are semiprimes. A92125

First occurrence of n in A100002; the least k such that A100002(k) = n. A100287

Generalized Mancala solitaire (A002491); to get n-th term, start with n and successively round up to next 4 multiples of n-1, n-2, ..., 1, for n>=1. A112558