641 × 2161

Prime Factor Structure

Factorization String 641 × 2161

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 1,388,004

Proper Divisor Sum 2,803

Digit Sum / Digital Root 20 (Root: 2)

Adjacent Primes #1385191 ← → #1385203

1 641 2,161 1,385,201

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

1,385,201 4,155,604 2,077,802 1,038,901 3,116,704 1,558,352 779,176 389,588 194,794 97,397 292,192 146,096 73,048 36,524 18,262 9,131 27,394 13,697 41,092 20,546 10,273 30,820 15,410 7,705 23,116 11,558 5,779 17,338 8,669 26,008 13,004 6,502 3,251 9,754 4,877 14,632 7,316 3,658 1,829 5,488 2,744 1,372 686 343 1,030 515 1,546 773 2,320 1,160 580 290 145 436 218 109 328 164 82 41

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