Properties of the Number 6888

Six Thousand Eight Hundred Eighty-Eight

Basics

Value: 6887 → 6888 → 6889

Parity: even

Prime: No

Previous Prime: 6883

Next Prime: 6899

Digit Sum: 30

Digital Root: 3

Palindrome: No

Factorization: 2 ³ × 3 × 7 × 41

Divisors: 1, 2, 3, 4, 6, 7, 8, 12, 14, 21

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 1101011101000

Octal: 15350

Duodecimal: 3BA0

Hexadecimal: 1ae8

Square: 47444544

Square Root: 82.99397568498571

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

Triangle read by rows: T(n,m) (n >= m >= 1) = number of regions (or cells) formed by drawing the line segments connecting any two of the 2*(m+n) perimeter points of an m X n grid of squares. A331452

8 times triangular numbers: a(n) = 4·n*(n+1). A33996

a(n) = (prime(n)-1)*(prime(n)+1). A84920

3 times octagonal numbers: a(n) = 3·n*(3·n-2). A152751

a(n) = (prime(n)+1)*(prime(n+1)+1)/4. A79079

T(n,k)=Number of nXk 0..1 arrays with every 1 horizontally, diagonally or antidiagonally adjacent to 0 or 2 neighboring 1s. A297457

Numbers k such that σ(x) = k has exactly 6 solutions. A60662

T(n,k)=Number of nXk 0..1 arrays avoiding 0 0 0 and 0 1 1 horizontally and 0 0 1 and 0 1 0 vertically. A207242

Numbers k such that k | sigma₅(k). A55709

Numbers k such that φ(x) = k has exactly 10 solutions. A60673