Properties of the Number 84812

Eighty-Four Thousand Eight Hundred Twelve

Basics

Value: 84811 → 84812 → 84813

Parity: even

Prime: No

Previous Prime: 84811

Next Prime: 84827

Digit Sum: 23

Digital Root: 5

Palindrome: No

Factorization: 2 ² × 7 × 13 × 233

Divisors: 1, 2, 4, 7, 13, 14, 26, 28, 52, 91

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10100101101001100

Octal: 245514

Duodecimal: 410B8

Hexadecimal: 14b4c

Square: 7193075344

Square Root: 291.2249989269465

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 whose numerator and denominator of the harmonic mean of their divisors are both Fibonacci numbers. A348658

a(n) = A000045(n+1)*A000292(n) (product of a Fibonacci number and a tetrahedral number). A372252

a(1)=1; for n >= 2, choose a(n) so that |∑_k=1..n 1/a(k)^z| < |∑_k=1..n-1 1/a(k)^z|, where z = 1/2 + i·2*π. A84812