Properties of the Number 12847

Twelve Thousand Eight Hundred Forty-Seven

Basics

Value: 12846 → 12847 → 12848

Parity: odd

Prime: No

Previous Prime: 12841

Next Prime: 12853

Digit Sum: 22

Digital Root: 4

Palindrome: No

Factorization: 29 × 443

Divisors: 1, 29, 443, 12847

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 11001000101111

Octal: 31057

Duodecimal: 7527

Hexadecimal: 322f

Square: 165045409

Square Root: 113.34460728239345

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 k with the property that it is possible to write the base 2 expansion of k as concat(a₂,b₂), with a₂>0 and b₂>0 such that, converting a₂ and b₂ to base 10 as a and b, we have σ(a + b) = σ(k). A258843

Triangle read by rows: T(n,k) = number of forests of labeled rooted trees with n nodes and height at most k (n>=1, 0<=k<=n-1). A210725

Number of forests with n nodes and height at most 3. A950

Coefficient of xⁿ in the expansion of ( (1-x) / (1-x-x²) )ⁿ. A370616

k such that k-th prime is of the form 2n² + 3n + 3. A96690

Number of Dyck paths of semilength n avoiding all five consecutive patterns of Dyck paths of semilength 3. A243986

Numbers k such that σ(triangular(k)) = σ(k)². A232355

Number of compositions of n such that the smallest part has multiplicity nine. A241869

Number of partitions into non-integral powers. A135

Numbers k whose decimal expansion can be split into at least two parts whose binary equivalents can be concatenated (in the same order) to form the binary expansion of the original number k. A237041