Properties of the Number 20502

Twenty Thousand Five Hundred Two

Basics

Value: 20501 → 20502 → 20503

Parity: even

Prime: No

Previous Prime: 20483

Next Prime: 20507

Digit Sum: 9

Digital Root: 9

Palindrome: Yes

Factorization: 2 × 3 ² × 17 × 67

Divisors: 1, 2, 3, 6, 9, 17, 18, 34, 51, 67

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 101000000010110

Octal: 50026

Duodecimal: BA46

Hexadecimal: 5016

Square: 420332004

Square Root: 143.1851947653807

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 minimal complete rulers of length n. A325684

Palindromic and divisible by 9. A45644

a(n) = prime(n)² - prime(n²). Commutator of (primes, squares) at n. A123914

Palindromes whose squares belong to A066531. A117281

Prime time numbers on 6-digit clocks: numbers of the form HMMSS where H, MM, SS are primes, H < 24, MM and SS < 60. A295014

Sum of the prime parts in the partitions of n into 9 parts. A309470

T(n,k)=Number of nXk 0..1 arrays with every element unequal to 1, 2, 4 or 5 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. A318214

Palindromes that are divisible by 6. A45641

Base-10 palindromes that start with 2. A43037

Palindromes with exactly 5 prime factors (counted with multiplicity). A46331