21397573

Prime Factor Structure

Factorization String 21397573

Distinct Prime Factors 1

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 2

Divisor Sum (σ) 21,397,574

Proper Divisor Sum 1

Digit Sum / Digital Root 37 (Root: 1)

Adjacent Primes #21397559 ← → #21397601

1 21,397,573

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

21,397,573 64,192,720 32,096,360 16,048,180 8,024,090 4,012,045 12,036,136 6,018,068 3,009,034 1,504,517 4,513,552 2,256,776 1,128,388 564,194 282,097 846,292 423,146 211,573 634,720 317,360 158,680 79,340 39,670 19,835 59,506 29,753 89,260 44,630 22,315 66,946 33,473 100,420 50,210 25,105 75,316 37,658 18,829 56,488 28,244 14,122 7,061 21,184 10,592 5,296 2,648 1,324 662 331 994 497 1,492 746 373 1,120 560 280 140 70 35 106

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