Properties of the Number 12455

Twelve Thousand Four Hundred Fifty-Five

Basics

Value: 12454 → 12455 → 12456

Parity: odd

Prime: No

Previous Prime: 12451

Next Prime: 12457

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 5 × 47 × 53

Divisors: 1, 5, 47, 53, 235, 265, 2491, 12455

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11000010100111

Octal: 30247

Duodecimal: 725B

Hexadecimal: 30a7

Square: 155127025

Square Root: 111.60197130875422

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

Centered tetrahedral numbers. A5894

Numbers k such that 60·R_k + 7 is prime, where R_k = 11...1 is the repunit (A002275) of length k. A56657

Number of subsets of {1..n} containing n and all first differences. A364752

C(2·n+4,4)-C(2·n,4). A85474

Positive integers i for which A112049(i) == 7. A112067

Total sum of the left-to-right weak peak maxima in all Dyck paths of semilength n. A346195

Numbers k whose ordered binary weights (A000120) of their divisors are the numbers 1 to A000005(k). A354724

G.f. A(x) satisfies A(A(A(A(A(A(x)))))) = x + 6·x² + 36·x³. A371841

Number of partitions of n containing a prime number of distinct primes and an arbitrary number of nonprimes. A344715

a(n) = (n+2)*a(n-1) + (n+1)*(A003422(n) - 4)/6 for n > 0 with a(0) = 1. A350309