7 × 13 × 37 × 157

Prime Factor Structure

Factorization String 7 × 13 × 37 × 157

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 672,448

Proper Divisor Sum 143,829

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #528611 ← → #528623

1 7 13 37 91 157 259 481 1,099 2,041 3,367 5,809 14,287 40,663 75,517 528,619

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

528,619 1,585,858 792,929 2,378,788 1,189,394 594,697 1,784,092 892,046 446,023 1,338,070 669,035 2,007,106 1,003,553 3,010,660 1,505,330 752,665 2,257,996 1,128,998 564,499 1,693,498 846,749 2,540,248 1,270,124 635,062 317,531 952,594 476,297 1,428,892 714,446 357,223 1,071,670 535,835 1,607,506 803,753 2,411,260 1,205,630 602,815 1,808,446 904,223 2,712,670 1,356,335 4,069,006 2,034,503 6,103,510 3,051,755 9,155,266 4,577,633 13,732,900 6,866,450 3,433,225 10,299,676 5,149,838 2,574,919 7,724,758 3,862,379 11,587,138 5,793,569 17,380,708 8,690,354 4,345,177

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