Properties of the Number -7938

Nine Hundred Thirty-Eight

Basics

Value: -7939 → -7938 → -7937

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 2 × 3 ⁴ × 7 ²

Divisors: 1, 2, 3, 6, 7, 9, 14, 18, 21, 27

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -1111100000010

Octal: -17402

Duodecimal: -4716

Hexadecimal: -1f02

Square: 63011844

Square Root: 89.09545442950498

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

Fibonacci matrix read by antidiagonals. (Inverse of A136158.) A164948

Array: row n shows the coefficients of the characteristic polynomial of the n-th principal submatrix of f(i,j)=min(3i-2,3j-2) (A204028). A204029

A Chebyshev polynomial triangle of the first kind defined by T(n+1,x) = 3x·T(n,x) - T(n-1,x). A136159

Numbers n such that A048767(n) = n. A48768

Coordination sequence for 3D uniform tiling formed by stacking parallel layers of the 3.6.3.6 2D tiling (cf. A008579). A299256

Coordination sequence for "tcd" 3D uniform tiling. A299287

Primal codes of finite permutations on positive integers. A109297

Coefficients in expansion of (E₄³/E₆²)^1/32. A299949

Maximum number of regions into which the plane can be divided using n (concave) quadrilaterals. A77591

Concentric 18-gonal numbers. A195147