Properties of the Number 85609

Eighty-Five Thousand Six Hundred Nine

Basics

Value: 85608 → 85609 → 85610

Parity: odd

Prime: No

Previous Prime: 85607

Next Prime: 85619

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 59 × 1451

Divisors: 1, 59, 1451, 85609

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

2196 Try Today's Challenge

Representations

Binary: 10100111001101001

Octal: 247151

Duodecimal: 41661

Hexadecimal: 14e69

Square: 7328900881

Square Root: 292.5901570456532

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

Centered icosahedral (or cuboctahedral) numbers, also crystal ball sequence for f.c.c. lattice. A5902

G.f.: exp( ∑_n>=1 A064027(n)*xⁿ/n ), where A064027(n) = (-1)ⁿ*∑_d∣n(-1)^d*d². A224364

Expansion of ∏_k>=1 (1 - x^2·k-1)^2·k-1/(1 - x^2·k)^2·k. A281683

A sixth-order linear divisibility sequence: a(n+6) = -3·a(n+5) - 5·a(n+4) - 5·a(n+3) - 5·a(n+2) - 3·a(n+1) - a(n). A5120

Strong pseudoprimes to base 24. A20250

Strong pseudoprimes to base 46. A20272

Strong pseudoprimes to base 75. A20301

Strong pseudoprimes to base 78. A20304

Strong pseudoprimes to base 83. A20309

Strong pseudoprimes to base 93. A20319