2 × 19 × 83 × 409

Prime Factor Structure

Factorization String 2 × 19 × 83 × 409

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 2,066,400

Proper Divisor Sum 776,414

Digit Sum / Digital Root 43 (Root: 7)

Adjacent Primes #1289971 ← → #1290013

1 2 19 38 83 166 409 818 1,577 3,154 7,771 15,542 33,947 67,894 644,993 1,289,986

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

1,289,986 644,993 1,934,980 967,490 483,745 1,451,236 725,618 362,809 1,088,428 544,214 272,107 816,322 408,161 1,224,484 612,242 306,121 918,364 459,182 229,591 688,774 344,387 1,033,162 516,581 1,549,744 774,872 387,436 193,718 96,859 290,578 145,289 435,868 217,934 108,967 326,902 163,451 490,354 245,177 735,532 367,766 183,883 551,650 275,825 827,476 413,738 206,869 620,608 310,304 155,152 77,576 38,788 19,394 9,697 29,092 14,546 7,273 21,820 10,910 5,455 16,366 8,183

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