Properties of the Number 23021

Twenty-Three Thousand Twenty-One

Basics

Value: 23020 → 23021 → 23022

Parity: odd

Prime: Yes

Previous Prime: 23017

Next Prime: 23027

Digit Sum: 8

Digital Root: 8

Palindrome: No

Factorization: 23021

Divisors: 1, 23021

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 101100111101101

Octal: 54755

Duodecimal: 113A5

Hexadecimal: 59ed

Square: 529966441

Square Root: 151.72672803431834

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

Sixth term of strong prime sextets: p(m-4)-p(m-5) > p(m-3)-p(m-4) > p(m-2)-p(m-3) > p(m-1)-p(m-2) > p(m)-p(m-1). A54818

Primes p2 such that p1² + p2³ is an average of twin primes and p1 < p2 are consecutive primes. A138716

Odd primes p for which there are exactly as many primes in the range [prevprime(p)², prevprime(p)*p] as there are in the range [prevprime(p)*p, p²], where prevprime(p) gives the previous prime before prime p. A256473

a(n+1) is the smallest prime > a(n) such that the digits of a(n) are all (with multiplicity) contained in the digits of a(n+1), with a(1)=2. A242904

Positions of records in permutation A267107. A268393

Primes that remain prime through 3 iterations of function f(x) = 2x + 9. A23276

Primes that remain prime through 4 iterations of function f(x) = 2x + 9. A23306

Primes that remain prime through 5 iterations of function f(x) = 2x + 9. A23334

A064637 converted to factorial base. A64477

Primes such that prime(p) +- π(p) are simultaneously prime. A65117