Properties of the Number 20453

Twenty Thousand Four Hundred Fifty-Three

Basics

Value: 20452 → 20453 → 20454

Parity: odd

Prime: No

Previous Prime: 20443

Next Prime: 20477

Digit Sum: 14

Digital Root: 5

Palindrome: No

Factorization: 113 × 181

Divisors: 1, 113, 181, 20453

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 100111111100101

Octal: 47745

Duodecimal: BA05

Hexadecimal: 4fe5

Square: 418325209

Square Root: 143.01398533010678

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

Numbers that are the sum of 8 nonzero 8th powers. A3386

Number of partial mappings (or mapping patterns) from n points to themselves; number of partial endofunctions. A126285

MM-numbers of crossing, capturing multiset partitions (with empty parts allowed). A326259

MM-numbers of labeled simple hypergraphs with no singletons spanning an initial interval of positive integers. A320463

MM-numbers of labeled multi-hypergraphs with no singletons spanning an initial interval of positive integers. A320464

Numbers n where τ(n) and n-τ(n) are perfect squares, with τ(n) the number of divisors of n (A000005). A245197

Numerators of the partial alternating sums of the reciprocals of the powerfree part function (A055231). A379581

Number of 0..n arrays x(0..3) of 4 elements with zero 3rd differences. A200155

Number of (w,x,y) with all terms in {0,...,n} and x ≠ max(|w-x|,|x-y|). A213496

p-INVERT of (1,1,0,0,0,0,...), where p(S) = 1 - S - S² - S³ - S⁴. A291399