Properties of the Number 27969

Twenty-Seven Thousand Nine Hundred Sixty-Nine

Basics

Value: 27968 → 27969 → 27970

Parity: odd

Prime: No

Previous Prime: 27967

Next Prime: 27983

Digit Sum: 33

Digital Root: 6

Palindrome: No

Factorization: 3 × 9323

Divisors: 1, 3, 9323, 27969

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 110110101000001

Octal: 66501

Duodecimal: 14229

Hexadecimal: 6d41

Square: 782264961

Square Root: 167.23934943666816

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

Position of first appearance of each integer in A088568 (number of 1's minus number of 2's in first n terms of A000002). A288605

a(1) = 1; thereafter a(n+1) = floor(sqrt(2·a(n)*(a(n)+1))). A1521

Least k such that the first k terms of the Kolakoski sequence (A000002) contain n more 2's than 1's. A25503

Conjectured lower bound for the number of spheres of radius 1 that can be packed in a sphere of radius n. A121346

a(n) = index where A088568 (or equally A294448) first reaches or exceeds n in magnitude. A294449

Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 694", based on the 5-celled von Neumann neighborhood. A273411

Egyptian fraction representation for the cube root of 53. A132528

a(n) = T(n, 2·n-7), T given by A027960. A27969