Properties of the Number 12551

Twelve Thousand Five Hundred Fifty-One

Basics

Value: 12550 → 12551 → 12552

Parity: odd

Prime: No

Previous Prime: 12547

Next Prime: 12553

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 7 × 11 × 163

Divisors: 1, 7, 11, 77, 163, 1141, 1793, 12551

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11000100000111

Octal: 30407

Duodecimal: 731B

Hexadecimal: 3107

Square: 157527601

Square Root: 112.03124564156198

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

a(n) = a(n-1) + a(n-2) + a([n/2]), where a(0) = 1, a(1) = 1, a(2) = 1. A298338

10-gonal (or decagonal) pyramidal numbers: a(n) = n*(n + 1)*(8·n - 5)/6. A7585

Least number·such that xⁿ has n digits equal to k. Case k = 6. A285453

Number of partitions of n into 10 unordered relatively prime parts. A23030

Magnetic Tower of Hanoi, number of moves of disk number k, optimally solving the [RED ; NEUTRAL ; NEUTRAL] or [NEUTRAL ; NEUTRAL ; BLUE] pre-colored puzzle. A183115

Sum of piles of first n primes: a(n) = Sum(prime(i)*(2·i-1): 1<=i<=n). A316322

a(n) = A077702(n+1)/A077702(n). A77703

a(n) = ∑_k>=0 kⁿ*A000045(k)/2^k+1. A98799

a(n) = 49·n² + 7. A158481

Triangle read by rows: T(n,k) (n>=1, 1 <= k <= n) = number of n-element unlabeled interval posets of height k. A193387