Properties of the Number 5991

Five Thousand Nine Hundred Ninety-One

Basics

Value: 5990 → 5991 → 5992

Parity: odd

Prime: No

Previous Prime: 5987

Next Prime: 6007

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 1997

Divisors: 1, 3, 1997, 5991

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1011101100111

Octal: 13547

Duodecimal: 3573

Hexadecimal: 1767

Square: 35892081

Square Root: 77.40155037206942

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

Irregular triangle read by rows where T(n,k) is the number of labeled loop-graphs covering n vertices with k edges. A369199

a(1) = 7; a(n) is smallest number > a(n-1) such that the juxtaposition a(1)a(2)...a(n) is a prime. A74343

Least non-balanced x (i.e., not in A020492) such that σ(2n-1,x)/φ(x) is an integer. A78539

Number of n X 3 binary matrices under row and column permutations and column complementations. A6381

Sum of balls on the lawn for the s=3 tennis ball problem. A49235

a(n) = (p(n)*p(n+2) - p(n+1))/2, where p(n) is the n-th odd prime. A152531

Numbers k such that k⁸¹*(k⁸¹+1)+1 is prime. A153442

Numbers which need eight 'Reverse and Add' steps to reach a palindrome. A65213

Number of triangular regions in an equilateral triangular "frame" of size n (see Comments in A328526 for definition). A333032

Least non-balanced x (i.e., not in A020492) such that σ(p(n),x)/φ(x) is an integer, where p(n) = n-th prime. A78540