Properties of the Number 609

Six Hundred Nine

Basics

Value: 608 → 609 → 610

Parity: odd

Prime: No

Previous Prime: 607

Next Prime: 613

Digit Sum: 15

Digital Root: 6

Palindrome: No

Factorization: 3 × 7 × 29

Divisors: 1, 3, 7, 21, 29, 87, 203, 609

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: 1001100001

Octal: 1141

Duodecimal: 429

Hexadecimal: 261

Square: 370881

Square Root: 24.677925358506133

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) = Fibonacci(n) - 1. A71

Number of inseparable partitions of n; see Comments. A325535

Number of ordered triples (w,x,y) with all terms in {-n,...,0,...,n} and w² + x·y = 0. A211422

Number of "ON" cells at n-th stage in the "Ulam-Warburton" two-dimensional cellular automaton. A147562

a(n) = Fibonacci(2·n + 1) - 1. A27941

Number of condensed integer partitions of n. A239312

Tetranacci numbers: a(n) = a(n-1) + a(n-2) + a(n-3) + a(n-4), with a(0)=a(1)=0, a(2)=1, a(3)=2. A1630

Numbers k such that k² + 2 is prime. A67201

Numbers that are the sum of 4 nonzero 4th powers. A3338

a(n) = Fibonacci(n+2) - (1-(-1)ⁿ)/2. A52952