Properties of the Number 78417

Seventy-Eight Thousand Four Hundred Seventeen

Basics

Value: 78416 → 78417 → 78418

Parity: odd

Prime: No

Previous Prime: 78401

Next Prime: 78427

Digit Sum: 27

Digital Root: 9

Palindrome: No

Factorization: 3 ² × 8713

Divisors: 1, 3, 9, 8713, 26139, 78417

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 10011001001010001

Octal: 231121

Duodecimal: 39469

Hexadecimal: 13251

Square: 6149225889

Square Root: 280.0303554973996

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

Numbers k such that h(k) = h(k+1), where h(k) is the length of k, f(k), f(f(k)), ..., 1 in the Collatz (or 3x + 1) problem. (The earliest "1" is meant.) A78417

Position of first occurrence of n in A238529 (Recursive depth of n modulo sopfr(n)). A238530