Properties of the Number 82447

Eighty-Two Thousand Four Hundred Forty-Seven

Basics

Value: 82446 → 82447 → 82448

Parity: odd

Prime: No

Previous Prime: 82421

Next Prime: 82457

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 29 × 2843

Divisors: 1, 29, 2843, 82447

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2730 Try Today's Challenge

Representations

Binary: 10100001000001111

Octal: 241017

Duodecimal: 3B867

Hexadecimal: 1420f

Square: 6797507809

Square Root: 287.1358563467823

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

a(n) = floor( (4/3)*π*n³ ). A66645

Numbers which are the sum of the squares of seven consecutive primes. A133562

Number of (n+2)X9 0..2 arrays with every 3X3 subblock commuting with each horizontal and vertical neighbor 3X3 subblock. A186566

Expansion of e.g.f. exp(x * (3 - 2·exp(x))). A367877

a(n) = n * (7·binomial(n, 2) + 1). A329530

T(n,k)=Number of (n+2)X(k+2) 0..2 arrays with every 3X3 subblock commuting with each horizontal and vertical neighbor 3X3 subblock. A186568

a(n) = the number k such that s(k)=0 where s(0)=n and s(i)=s(i-1)-(s(i-1) modulo (i+1)). A82447

Table read by antidiagonals: Place k equally spaced points on each side of a regular n-gon and join every pair of these n·k points by a chord; T(n,k) (n >= 3, k >= 0) gives the number of regions in the resulting planar graph. A367304