Properties of the Number -129606

One Hundred Twenty-Nine Thousand Six Hundred Six

Basics

Value: -129607 → -129606 → -129605

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 21601

Divisors: 1, 2, 3, 6, 21601, 43202, 64803, 129606

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11111101001000110

Octal: -375106

Duodecimal: -63006

Hexadecimal: -1fa46

Square: 16797715236

Square Root: 360.00833323688494

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

a(n) = number of steps to reach 0 when starting from k = 3ⁿ and repeatedly applying the map that replaces k with k - (sum of digits in base-3 representation of k). A261232

a(n) = 3600·n² + n. A157861

Square array T(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where T(n,0) = 0ⁿ and T(n,k) = k * ∑_r=0..n binomial(n+2·r+k,r) * binomial(r,n-r)/(n+2·r+k) for k > 0. A378290

Values of n such that N=(an+1)(bn+1)(cn+1) is a 3-Carmichael number (A087788), where a,b,c = 1,2,33. A64253