Properties of the Number -6778

Seven Hundred Seventy-Eight

Basics

Value: -6779 → -6778 → -6777

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 2 × 3389

Divisors: 1, 2, 3389, 6778

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1101001111010

Octal: -15172

Duodecimal: -3B0A

Hexadecimal: -1a7a

Square: 45941284

Square Root: 82.3286098510111

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

Expansion of ∏_k>=1 1/(1+2·x^k). A71109

Numbers k such that k² is palindromic in base 3. A29984

a(n) is the greatest k such that A307730(k) = n. A348409

Positions of 2's in A264977; positions of 3's in A277330. A277712

Maximal number of 132 patterns in a permutation of 1,2,...,n. A61061

"AFK" (ordered, size, unlabeled) transform of 2,2,2,2,... A32005

a(n) is the number of integer partitions of n for which the smallest part is equal to the index of the seaweed algebra formed by the integer partition paired with its weight. A318196

Triangle read by rows: a(1,1) = 1. a(m,m) = sum of all terms in rows 1 through m-1. a(m,n) = a(m-1,n) + (sum of all terms in rows 1 through m-1), for n < m. A159927

Number of distinct lines passing through 3 or more points in an n X n grid. A225606

Sum of the aliquot divisors of n-th Fibonacci number. A74283