Properties of the Number 13480

Thirteen Thousand Four Hundred Eighty

Basics

Value: 13479 → 13480 → 13481

Parity: even

Prime: No

Previous Prime: 13477

Next Prime: 13487

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 ³ × 5 × 337

Divisors: 1, 2, 4, 5, 8, 10, 20, 40, 337, 674

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 11010010101000

Octal: 32250

Duodecimal: 7974

Hexadecimal: 34a8

Square: 181710400

Square Root: 116.10340218959993

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

Number of integer compositions of n whose parts have weakly decreasing numbers of distinct prime factors (A001221). A358902

Numbers n such that n and n+1 are differences between 2 positive cubes in at least one way. A38594

a(n) = ∑_{k=0..floor(n/2)} binomial(n-k, k-1) * 3^k-1. A99579

One fifth of the sum of the first n primes, when an integer. A112271

Number of permutations of length n which avoid the patterns 312, 1324, 3421; or avoid the patterns 312, 1324, 2341, etc. A116722

G.f. satisfies: A(x) = 1 + x·A(x) * A(A(x) - 1). A182224

Expansion of f(-x)² * f(-x¹⁰) / φ(-x)³ in powers of·where φ(), f() are Ramanujan θ functions. A262050

Number of numbers that are ternary squarefree words of length n. A88953

Number of shapes of left-leaning height-balanced AVL trees with n (inner) nodes. A296103

a(1) = 1; a(n+1) is the smallest k > a(n) such that 2^k == 2^a(n) (mod a(n)). A306829