Properties of the Number -13980

Thirteen Thousand Nine Hundred Eighty

Basics

Value: -13981 → -13980 → -13979

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 21

Digital Root: 3

Palindrome: No

Factorization: 2 ² × 3 × 5 × 233

Divisors: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11011010011100

Octal: -33234

Duodecimal: -8110

Hexadecimal: -369c

Square: 195440400

Square Root: 118.23705003085962

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 ∏_{m >= 1} (1-m·q^m)¹⁵. A22675

Number of ways to place 4 nonattacking queens on a 4 X n board. A61990

T(n,k)=Number of length n+3 0..k arrays with no consecutive four elements summing to more than 2·k. A241964

Expansion of ∏_k=1..10 theta₃(q^k), where theta₃() is the Jacobi θ function. A320242

Number of ways in which n identical balls can be distributed among 4 boxes in a row such that each pair of adjacent boxes contains at least 4 balls. A5337

Number of linear arrangements of n blue, n red and n green items such that first and last elements have the same color but there are no adjacent items of the same color. A110711

Sum of terms in n-th row of A081491. A81492

a(n) = Fibonacci(n)*A109064(n) for n>=1 with a(0)=1. A205882

∏_n>=1 (1 + a(n)*xⁿ) = 1 + ∑_n>=1 τ(n)*xⁿ, where τ = A000005. A353923

a(n) = 10000·log₁₀(n) rounded up. A4230