Properties of the Number 82421

Eighty-Two Thousand Four Hundred Twenty-One

Basics

Value: 82420 → 82421 → 82422

Parity: odd

Prime: Yes

Previous Prime: 82393

Next Prime: 82457

Digit Sum: 17

Digital Root: 8

Palindrome: No

Factorization: 82421

Divisors: 1, 82421

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10100000111110101

Octal: 240765

Duodecimal: 3B845

Hexadecimal: 141f5

Square: 6793221241

Square Root: 287.0905780411471

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 which are a concatenation of n and prime(n). A84667

Lexicographically largest increasing sequence of primes for which the continued square root map (see A257574) produces the decimal expansion of e (Euler's number). A257764

Expansion of ∏_k>=1 (∏_j=1..k 1/(1 - x^k·j)^k·j). A327068

Primes of the form 2·k² + 3. A201473

Primes that are the sum of 101 consecutive primes. A215993

Prime numbers generated by casting a number in its own base. A64508

Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 22. A31610

Numbers n such that P(n+1) < P(n) < P(n+2), where P(n) = largest prime factor of n (A006530). A82421