3 × 5² × 283

Prime Factor Structure

Factorization String 3 × 5^2 × 283

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 35,216

Proper Divisor Sum 13,991

Digit Sum / Digital Root 12 (Root: 3)

Adjacent Primes #21221 ← → #21227

1 3 5 15 25 75 283 849 1,415 4,245 7,075 21,225

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

21,225 63,676 31,838 15,919 47,758 23,879 71,638 35,819 107,458 53,729 161,188 80,594 40,297 120,892 60,446 30,223 90,670 45,335 136,006 68,003 204,010 102,005 306,016 153,008 76,504 38,252 19,126 9,563 28,690 14,345 43,036 21,518 10,759 32,278 16,139 48,418 24,209 72,628 36,314 18,157 54,472 27,236 13,618 6,809 20,428 10,214 5,107 15,322 7,661 22,984 11,492 5,746 2,873 8,620 4,310 2,155 6,466 3,233 9,700 4,850

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