Properties of the Number 20443

Twenty Thousand Four Hundred Forty-Three

Basics

Value: 20442 → 20443 → 20444

Parity: odd

Prime: Yes

Previous Prime: 20441

Next Prime: 20477

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 20443

Divisors: 1, 20443

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 100111111011011

Octal: 47733

Duodecimal: B9B7

Hexadecimal: 4fdb

Square: 417916249

Square Root: 142.97901943991644

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

Primes whose base-3 representation also is the base-2 representation of a prime. A235265

a(n) = prime(q(n)), where q(n) = A002110(n). A62447

Primes whose decimal representation is a valid number in base 5 and interpreted as such is again a prime. A90708

Primes p such that q-p = 34, where q is the next prime after p. A134116

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

Primes having Fibonacci prime gaps to both neighbor primes. A353135

Primes of the form n² - 6. A28880

Squarefree MM-numbers of strict uniform regular multiset systems spanning an initial interval of positive integers. A322703

Primes congruent to 8 mod 61. A142806