Properties of the Number 4039

Four Thousand Thirty-Nine

Basics

Value: 4038 → 4039 → 4040

Parity: odd

Prime: No

Previous Prime: 4027

Next Prime: 4049

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 7 × 577

Divisors: 1, 7, 577, 4039

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 111111000111

Octal: 7707

Duodecimal: 2407

Hexadecimal: fc7

Square: 16313521

Square Root: 63.55312738174259

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

Coordination sequence for 3D uniform tiling formed by stacking parallel layers of the 3⁴.6 2D tiling (cf. A250120). A299254

Generalized Fibonacci numbers. A15441

Number of different resistances that can be obtained by combining n one-ohm resistors. A180414

Number of partitions of n into aliquant parts (i.e., parts that do not divide n). A98743

a(1) = 1; for n > 1, a(n) = n concatenated with n - 1. A127423

Numbers k such that k¹⁸ == 1 (mod 19³). A56089

Array T(k,n), read by antidiagonals: T(k,n) = ((k+1)ⁿ⁺¹-(-k)ⁿ⁺¹)/(2k+1). A81297

Sum of odd powers of 2 and of 3 divided by 5. A96951

Shifts left under transform T where Ta is φ DCONV a. A38045

Number of intersection points formed by drawing the line segments connecting any two lattice points of an n X m convex lattice polygon written as triangle T(n,m), n >= 1, 1 <= m <= n. A288180