Properties of the Number 83421

Eighty-Three Thousand Four Hundred Twenty-One

Basics

Value: 83420 → 83421 → 83422

Parity: odd

Prime: No

Previous Prime: 83417

Next Prime: 83423

Digit Sum: 18

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 13 × 23 × 31

Divisors: 1, 3, 9, 13, 23, 31, 39, 69, 93, 117

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10100010111011101

Octal: 242735

Duodecimal: 40339

Hexadecimal: 145dd

Square: 6959063241

Square Root: 288.8269378018609

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 modified skew Dyck paths of semilength n. A230823

Numbers which are the sum of two positive cubes and divisible by 23. A101806

Number of n edge connected sensed planar maps with an external face in which all internal faces are triangles. A378338

The sum of the numbers on the perimeter of the n X n diamond frame, located at the top of the numerical pyramid containing the positive integers in natural order. A359096

Ratio of quadruple Sum of k²-1 to quadruple sum of k made into an integer sequence: (1/6)*(-1 + n)*(2 + n)*(3 + n)*(7 + n). A130863

a(n)=2·5ⁿ-2ⁿ. A83421

Number of length n+1 0..3 arrays with the sum of the squares of adjacent differences multiplied by some arrangement of +-1 equal to zero. A250272