Properties of the Number 77438

Seventy-Seven Thousand Four Hundred Thirty-Eight

Basics

Value: 77437 → 77438 → 77439

Parity: even

Prime: No

Previous Prime: 77431

Next Prime: 77447

Digit Sum: 29

Digital Root: 2

Palindrome: No

Factorization: 2 × 31 × 1249

Divisors: 1, 2, 31, 62, 1249, 2498, 38719, 77438

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10010111001111110

Octal: 227176

Duodecimal: 38992

Hexadecimal: 12e7e

Square: 5996643844

Square Root: 278.27684057427416

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

Number of nX6 0..1 arrays with every element equal to 0, 1, 3, 4 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. A300942

T(n,k)=Number of nXk 0..1 arrays with every element equal to 0, 1, 3, 4 or 6 horizontally, vertically or antidiagonally adjacent elements, with upper left element zero. A300944

Numbers k such that ∑_d∣k μ(d) μ(n/d)² = -1. A77438

Decimal expansion of the maximum value of r such that the non-integer sequence, f(n+1) = exp(f(n)/f(n-1)) - r, grows monotonically, with f(0) = 1 and f(1) = 1. A248926