Properties of the Number 78441

Seventy-Eight Thousand Four Hundred Forty-One

Basics

Value: 78440 → 78441 → 78442

Parity: odd

Prime: No

Previous Prime: 78439

Next Prime: 78467

Digit Sum: 24

Digital Root: 6

Palindrome: No

Factorization: 3 × 11 × 2377

Divisors: 1, 3, 11, 33, 2377, 7131, 26147, 78441

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011001001101001

Octal: 231151

Duodecimal: 39489

Hexadecimal: 13269

Square: 6152990481

Square Root: 280.07320471619556

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

Least integer b>2n+1 such that the numbers written as [1,3,...,2n-1,2n+1] and [2n+1,2n-1,...,3,1] in base b are both prime. A218465

Number of closed trails starting and ending at a fixed vertex in the complete undirected graph on n labeled vertices. A357855

Expansion of sum ( qⁿ / product( 1-q^k, k=1..6·n), n=0..inf ). A35298

Number of unrooted binary leaf-multi-labeled trees with n leaves on the label set [3], with each label used at least once. A220830

Number of positions that are exactly n moves from the starting position in the Billiards Nine-Ball puzzle. A79839

a(n) begins the first chain of n consecutive positive integers that have equal h-values, where h(k) is the length of the finite sequence k, f(k), f(f(k)), ...., 1 in the Collatz (or 3x + 1) problem. (The earliest "1" is meant.) A78441