Properties of the Number -121016

One Hundred Twenty-One Thousand Sixteen

Basics

Value: -121017 → -121016 → -121015

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 11

Digital Root: 2

Palindrome: No

Factorization: 2 ³ × 7 × 2161

Divisors: 1, 2, 4, 7, 8, 14, 28, 56, 2161, 4322

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -11101100010111000

Octal: -354270

Duodecimal: -5A048

Hexadecimal: -1d8b8

Square: 14644872256

Square Root: 347.8735402412779

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 (n+2)X(k+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 0 3 4 6 or 7 and every 3X3 column and antidiagonal sum not equal to 0 3 4 6 or 7. A252640

a(n) = 8·Lucas(n). A258160

a(n) = ∑_{k=0..floor(n/2)} binomial(n-k+4, k). A99572

a(n) = round(n*φ²⁰), where φ is the golden ratio, A001622. A4955

a(n) = ∑_{k=floor((n+1)/2)..n} Fibonacci(k+1). A129361

T(n,n-2), array T as in A038738. A38739

Central numbers of the triangle T of all positive differences of distinct Fibonacci numbers. A94586

Number of (n+1) X 2 binary arrays with every 2 X 2 subblock determinant equal to some horizontal or vertical neighbor 2 X 2 subblock determinant. A185479

a(n) = ceiling(n*φ²⁰), where φ is the golden ratio, A001622. A4975

Number of (n+2)X(7+2) 0..3 arrays with every 3X3 subblock row and diagonal sum equal to 0 3 4 6 or 7 and every 3X3 column and antidiagonal sum not equal to 0 3 4 6 or 7. A252639