Properties of the Number 80017

Eighty Thousand Seventeen

Basics

Value: 80016 → 80017 → 80018

Parity: odd

Prime: No

Previous Prime: 79999

Next Prime: 80021

Digit Sum: 16

Digital Root: 7

Palindrome: No

Factorization: 7 ² × 23 × 71

Divisors: 1, 7, 23, 49, 71, 161, 497, 1127, 1633, 3479

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10011100010010001

Octal: 234221

Duodecimal: 3A381

Hexadecimal: 13891

Square: 6402720289

Square Root: 282.8727629164745

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

Variant of Lucas numbers: a(n) = a(n-1) + 4·a(n-2) starting with a(0)=2 and a(1)=1. A72265

Numbers k such that σ(k) = ψ(k) + τ(k)³. A390297

Sum of column entries of the table with rows of prime numbers (2,3,0,0,...), (0,5,7,11,0,...), (0,0,13,17,19,23,0,...), (0,0,0,29,31,37,41,43,0,...), ... A238760

Erroneous version of A000940. A4577

Duplicate of A072265. A85488

Number of two-element generating sets in the symmetric group S_n. A1691

Denominators of the convergents to the continued fraction of π²/6. A80017