Properties of the Number 12854

Twelve Thousand Eight Hundred Fifty-Four

Basics

Value: 12853 → 12854 → 12855

Parity: even

Prime: No

Previous Prime: 12853

Next Prime: 12889

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 × 6427

Divisors: 1, 2, 6427, 12854

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11001000110110

Octal: 31066

Duodecimal: 7532

Hexadecimal: 3236

Square: 165225316

Square Root: 113.37548235840057

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

T(n, k) = S(2n, n, k) for 0<=k<=n and n>=0, where S(p, q, r) is the number of upright paths from (0, 0) to (p, p-q) that do not rise above the line y = x-r. A50157

Numbers k such that 2^k + 27 is prime. A157007

Sum of the third largest parts of the partitions of n into 10 squarefree parts. A326635

Lower ends of record gaps between numbers that are either prime or twice a prime. A290488

a(n) = ∑_{k=0..floor(n/2)} (C(n+2, k+2) - C(n+2, k)). A194124

First subsequent, disjoint occurrence of n consecutive nonprimes. A60064

a(n) = 4·n³ - 3·n² + 2·n - 1. A131464

a(n) = ∑_{j = 1..n} ∑_{i = 1..n} (i + j)! / (i! * j!). A144657

Having specified two initial terms, the "Half-Fibonacci" sequence proceeds like the Fibonacci sequence, except that the terms are halved before being added if they are even. A120424

Potential magic constants of a 10 X 10 magic square composed of consecutive primes. A192087