13 × 43 × 1217

Prime Factor Structure

Factorization String 13 × 43 × 1217

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 750,288

Proper Divisor Sum 69,985

Digit Sum / Digital Root 20 (Root: 2)

Adjacent Primes #680299 ← → #680321

1 13 43 559 1,217 15,821 52,331 680,303

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

680,303 2,040,910 1,020,455 3,061,366 1,530,683 4,592,050 2,296,025 6,888,076 3,444,038 1,722,019 5,166,058 2,583,029 7,749,088 3,874,544 1,937,272 968,636 484,318 242,159 726,478 363,239 1,089,718 544,859 1,634,578 817,289 2,451,868 1,225,934 612,967 1,838,902 919,451 2,758,354 1,379,177 4,137,532 2,068,766 1,034,383 3,103,150 1,551,575 4,654,726 2,327,363 6,982,090 3,491,045 10,473,136 5,236,568 2,618,284 1,309,142 654,571 1,963,714 981,857 2,945,572 1,472,786 736,393 2,209,180 1,104,590 552,295 1,656,886 828,443 2,485,330 1,242,665 3,727,996 1,863,998 931,999

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