Properties of the Number 20464

Twenty Thousand Four Hundred Sixty-Four

Basics

Value: 20463 → 20464 → 20465

Parity: even

Prime: No

Previous Prime: 20443

Next Prime: 20477

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 2 ⁴ × 1279

Divisors: 1, 2, 4, 8, 16, 1279, 2558, 5116, 10232, 20464

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 100111111110000

Octal: 47760

Duodecimal: BA14

Hexadecimal: 4ff0

Square: 418775296

Square Root: 143.05243793798132

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+3) = 3·a(n+2) - 2·a(n+1) + 1 with a(0)=1, a(1)=5. A94002

a(0) = 1; a(n) = (n!)³ * ∑_k=0..n-1 a(k) / (k! * (n-k))³. A336259

Let (u1,u2) be successive untouchable numbers such that φ(u1) = φ(u2); sequence gives values of u2. A48190

a(1)=1, a(n) = a(n-1) + n⁵ if n odd, a(n) = a(n-1) + n³ if n is even. A135099

Expansion of (1-3·x+6·x²-3·x³)/((1-x)²*(1-2·x)). A188589

The number of flips to go from Hamiltonian cycle beta_n to gamma_n in the Cameron graph of size n using Thomason's algorithm. A332751

Numbers whose set of base-11 digits is {1,4}. A32823

a(n) = gpf(a(n-3))*gpf(a(n-2)) + gpf(a(n-1)), with a(1)=a(2)=1 and a(3)=2 and where gpf(n) is the greatest prime dividing n, A006530(n). A258804

Numbers k such that A001156(k) is divisible by k. A304046

Numbers k whose decimal representation can be split in three parts which can be used as seeds for a tribonacci-like sequence containing k itself. A383230