Properties of the Number -129801

One Hundred Twenty-Nine Thousand Eight Hundred One

Basics

Value: -129802 → -129801 → -129800

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 3 × 7 ² × 883

Divisors: 1, 3, 7, 21, 49, 147, 883, 2649, 6181, 18543

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11111101100001001

Octal: -375411

Duodecimal: -63149

Hexadecimal: -1fb09

Square: 16848299601

Square Root: 360.27905850881757

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

Number of arrays of 2n nondecreasing integers in -3..3 with sum zero and equal numbers greater than zero and less than zero. A203286

a(n) = n²*(2·n² + 1)/3. A71270

T(n,k)=Number of (n+1)X(k+1) 0..3 arrays x(i,j) with row sums sum{j²*x(i,j), j=1..k+1} nondecreasing, and column sums sum{i²*x(i,j), i=1..n+1} nondecreasing. A232708

Number of (n+1)X(1+1) 0..3 arrays x(i,j) with row sums sum{j²*x(i,j), j=1..1+1} nondecreasing, and column sums sum{i²*x(i,j), i=1..n+1} nondecreasing. A232706

Eigensequence of A053121. A130018