Properties of the Number -126987

One Hundred Twenty-Six Thousand Nine Hundred Eighty-Seven

Basics

Value: -126988 → -126987 → -126986

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 33

Digital Root: 6

Palindrome: No

Factorization: 3 × 7 × 6047

Divisors: 1, 3, 7, 21, 6047, 18141, 42329, 126987

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -11111000000001011

Octal: -370013

Duodecimal: -615A3

Hexadecimal: -1f00b

Square: 16125698169

Square Root: 356.35235371749684

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

Column 1 of matrix square of triangle A152400; also, column 3 of square array A152405. A152404

Square array, read by antidiagonals, where row n+1 is generated from row n by first removing terms in row n at positions {m*(m+1)/2, m>=0} and then taking partial sums, starting with all 1's in row 0. A152405

Expansion of e.g.f. ∏_k>=1 (1 + x^k)^exp(x). A347915

Number of 3Xn 0..2 arrays with no more than floor(3Xn/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..2 order. A222575