2 × 7 × 29 × 53

Prime Factor Structure

Factorization String 2 × 7 × 29 × 53

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 38,880

Proper Divisor Sum 17,362

Digit Sum / Digital Root 17 (Root: 8)

Adjacent Primes #21517 ← → #21521

1 2 7 14 29 53 58 106 203 371 406 742 1,537 3,074 10,759 21,518

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

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 2,425 7,276 3,638 1,819 5,458 2,729 8,188 4,094 2,047 6,142 3,071 9,214 4,607 13,822 6,911 20,734 10,367 31,102 15,551 46,654 23,327 69,982 34,991 104,974 52,487 157,462 78,731 236,194 118,097 354,292 177,146

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