Properties of the Number 86478

Eighty-Six Thousand Four Hundred Seventy-Eight

Basics

Value: 86477 → 86478 → 86479

Parity: even

Prime: No

Previous Prime: 86477

Next Prime: 86491

Digit Sum: 33

Digital Root: 6

Palindrome: No

Factorization: 2 × 3 × 7 × 29 × 71

Divisors: 1, 2, 3, 6, 7, 14, 21, 29, 42, 58

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10101000111001110

Octal: 250716

Duodecimal: 42066

Hexadecimal: 151ce

Square: 7478444484

Square Root: 294.07141989659584

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 n such that the decimal expansions of both n and n² have 4 as the digit with the smallest value and 8 as the digit with the largest value. A254071

a(n) = 196·n² + 2·n. A158222

a(n) = 49·n² + n. A173141

Least m>0 for which m·n² + 1 is a square and m·triangular(n) + 1 is a triangular number (A000217). Or -1 if no such m exists. A267077

Numbers k such that k² contains only digits {4,7,8}. A53962

Numbers k such that k and k² use only the digits 0, 4, 6, 7 and 8. A136954

Numbers k such that k and k² use only the digits 1, 4, 6, 7 and 8. A137052

Numbers k such that k and k² use only the digits 2, 4, 6, 7 and 8. A137101

Numbers k such that k and k² use only the digits 3, 4, 6, 7 and 8. A137127

Numbers k such that k and k² use only the digits 4, 5, 6, 7 and 8. A137140