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Properties of the Number -6654

Six Hundred Fifty-Four

Basics

Value: -6655 → -6654 → -6653

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 × 3 × 1109

Divisors: 1, 2, 3, 6, 1109, 2218, 3327, 6654

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1100111111110

Octal: -14776

Duodecimal: -3A26

Hexadecimal: -19fe

Square: 44275716

Square Root: 81.57205403813245

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

T(n,k)=Number of nXk 0..1 arrays with every repeated value in every row unequal to the previous repeated value, and in every column equal to the previous repeated value, and new values introduced in row-major sequential order. A267667
a(n) = a(n-1) + a(m) for n >= 3, where m = 2p+1 + 2 - n and p is the unique integer such that 2p < n - 1 <= 2p+1, starting with a(1) = 1 and a(2) = 2. A50049
T(n,k)=Number of nXk 0..3 arrays with rows and columns lexicographically nondecreasing and every element equal to at least one horizontal or vertical neighbor. A201625
Numbers congruent to 2 in the structure of A211000. A211001
Expansion of series related to Liouville's Last Theorem: g.f. ∑t>0 (-1)t+1 *xt*(t+1/2) / ( (1-xt)3 *∏i=1..t (1-xi) ). A59820
a(n) is the least positive integer that can be expressed as the sum of a prime number and a nonnegative cube in exactly n ways. A365289
Numbers k for which σ(k - x) + σ(k + x) = 7·k has at least one nonnegative solution. A384840
Lengths of runs of identical terms in A253443. A253444
a(n) is the least positive integer that can be expressed as the sum of a prime number and a positive cube in exactly n ways. A365290
Number of nonnegative integer 5 X 5 matrices with sum of elements equal to n, under row and column permutations. A52367