Properties of the Number 20873

Twenty Thousand Eight Hundred Seventy-Three

Basics

Value: 20872 → 20873 → 20874

Parity: odd

Prime: Yes

Previous Prime: 20857

Next Prime: 20879

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 20873

Divisors: 1, 20873

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 101000110001001

Octal: 50611

Duodecimal: 100B5

Hexadecimal: 5189

Square: 435682129

Square Root: 144.4749113168096

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

Prime(n)*...*a(n) is the least product of consecutive primes which is abundant. A7708

Primes p such that p² + 4 and p² + 10 are also primes. A237890

Primes p that divide Fibonacci[(p+1)/7]. A125252

Prime(n)*...*a(n) is the least product of consecutive primes which is non-deficient. A7686

Primes p such that the polynomial x⁵-x⁴-x³-x²-x-1 mod p has 5 distinct zeros. A106281

Prime numbers p not of the form 10k+1 for which the quintonacci quintic polynomial x⁵ - x⁴ - x³ - x² - x - 1 modulus p is factorizable into five binomials. A135847

Primes of the form abs(1/(36)(n⁶ - 126n⁵ + 6217n⁴ - 153066n³ + 1987786n² - 13055316n + 34747236)) in order of increasing nonnegative n. A272555

Primes such that the sum of the factorials of the digits is a perfect square. A52279

Prime numbers p for which quintonacci quintic polynomial x⁵-x⁴-x³-x²-x-1 modulus p is completely factorizable. A135846

Primes p such that none of p-2, p-1, p+1, and p+2 is squarefree. A153215