821 × 829

Prime Factor Structure

Factorization String 821 × 829

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 682,260

Proper Divisor Sum 1,651

Digit Sum / Digital Root 29 (Root: 2)

Adjacent Primes #680597 ← → #680611

1 821 829 680,609

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

680,609 2,041,828 1,020,914 510,457 1,531,372 765,686 382,843 1,148,530 574,265 1,722,796 861,398 430,699 1,292,098 646,049 1,938,148 969,074 484,537 1,453,612 726,806 363,403 1,090,210 545,105 1,635,316 817,658 408,829 1,226,488 613,244 306,622 153,311 459,934 229,967 689,902 344,951 1,034,854 517,427 1,552,282 776,141 2,328,424 1,164,212 582,106 291,053 873,160 436,580 218,290 109,145 327,436 163,718 81,859 245,578 122,789 368,368 184,184 92,092 46,046 23,023 69,070 34,535 103,606 51,803 155,410

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