Properties of the Number 20023

Twenty Thousand Twenty-Three

Basics

Value: 20022 → 20023 → 20024

Parity: odd

Prime: Yes

Previous Prime: 20021

Next Prime: 20029

Digit Sum: 7

Digital Root: 7

Palindrome: No

Factorization: 20023

Divisors: 1, 20023

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 100111000110111

Octal: 47067

Duodecimal: B707

Hexadecimal: 4e37

Square: 400920529

Square Root: 141.5026501518611

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 of the form 1 + n + n² + n³ + ... + n^k, n > 1, k > 1. A85104

Primes of form k² + k + 1. A2383

Primes p such that there are positive integers m and n and a prime q such that p = m²+m-q = n²+n+q. A162652

Primes of the form ((p-1)/2)²+((p+1)/2), where p is prime. A163418

Primes whose sum of digits is 7. A62337

Primes having only {0, 2, 3} as digits. A260125

Primes of the form 4·k² - 10·k + 7 with k positive. A73337

Class 6+ primes. A81634

Primes of the form n² + n + 1 where n is nonprime. A185632

a(1) = 1; for n > 1, a(n) is the smallest unused prime number that can be created by either removing or adding a single digit anywhere in the value of a(n-1). A389824