3² × 7 × 47 × 73

Prime Factor Structure

Factorization String 3^2 × 7 × 47 × 73

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 369,408

Proper Divisor Sum 153,255

Digit Sum / Digital Root 18 (Root: 9)

Adjacent Primes #216149 ← → #216157

1 3 7 9 21 47 63 73 141 219 329 423 511 657 987 1,533 2,961 3,431 4,599 10,293 24,017 30,879 72,051 216,153

Iterative sequence n → n/2 (if even) or 3n+1 (if odd):

216,153 648,460 324,230 162,115 486,346 243,173 729,520 364,760 182,380 91,190 45,595 136,786 68,393 205,180 102,590 51,295 153,886 76,943 230,830 115,415 346,246 173,123 519,370 259,685 779,056 389,528 194,764 97,382 48,691 146,074 73,037 219,112 109,556 54,778 27,389 82,168 41,084 20,542 10,271 30,814 15,407 46,222 23,111 69,334 34,667 104,002 52,001 156,004 78,002 39,001 117,004 58,502 29,251 87,754 43,877 131,632 65,816 32,908 16,454 8,227

Other feeder batches with open delivery windows. Each feeder keeps its own target batch.