7 × 13 × 31 × 137

Prime Factor Structure

Factorization String 7 × 13 × 31 × 137

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 494,592

Proper Divisor Sum 108,115

Digit Sum / Digital Root 35 (Root: 8)

Adjacent Primes #386471 ← → #386489

1 7 13 31 91 137 217 403 959 1,781 2,821 4,247 12,467 29,729 55,211 386,477

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

386,477 1,159,432 579,716 289,858 144,929 434,788 217,394 108,697 326,092 163,046 81,523 244,570 122,285 366,856 183,428 91,714 45,857 137,572 68,786 34,393 103,180 51,590 25,795 77,386 38,693 116,080 58,040 29,020 14,510 7,255 21,766 10,883 32,650 16,325 48,976 24,488 12,244 6,122 3,061 9,184 4,592 2,296 1,148 574 287 862 431 1,294 647 1,942 971 2,914 1,457 4,372 2,186 1,093 3,280 1,640 820 410

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