Properties of the Number 21323

Twenty-One Thousand Three Hundred Twenty-Three

Basics

Value: 21322 → 21323 → 21324

Parity: odd

Prime: Yes

Previous Prime: 21319

Next Prime: 21341

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 21323

Divisors: 1, 21323

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4823 Try Today's Challenge

Representations

Binary: 101001101001011

Octal: 51513

Duodecimal: 1040B

Hexadecimal: 534b

Square: 454670329

Square Root: 146.02397063496116

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 3 X n binary matrices up to row and column permutations. A2727

Discriminants of imaginary quadratic fields with class number 25 (negated). A56987

Primes of the form k(k+1)/2+2 (i.e., two more than a triangular number). A55472

Prime time primes on 6-digit clocks, second definition: primes of the form HMMSS where H, MM, SS are primes, H < 24, MM and SS < 60. A295013

Primes of the form k² + 7. A79138

Primes p such that the multiplicative order of 2 modulo p is (p-1)/7. A152307

a(n) = (n³ - n + 9)/3. A155753

Primes congruent to 24 mod 59. A142751

Primes congruent to 34 mod 61. A142832

Primes p such that p³ - 24 and p³ + 24 are also primes. A153323