5 × 19 × 43 × 4289

Prime Factor Structure

Factorization String 5 × 19 × 43 × 4289

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 22,651,200

Proper Divisor Sum 5,130,635

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #17520563 ← → #17520577

1 5 19 43 95 215 817 4,085 4,289 21,445 81,491 184,427 407,455 922,135 3,504,113 17,520,565

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

17,520,565 52,561,696 26,280,848 13,140,424 6,570,212 3,285,106 1,642,553 4,927,660 2,463,830 1,231,915 3,695,746 1,847,873 5,543,620 2,771,810 1,385,905 4,157,716 2,078,858 1,039,429 3,118,288 1,559,144 779,572 389,786 194,893 584,680 292,340 146,170 73,085 219,256 109,628 54,814 27,407 82,222 41,111 123,334 61,667 185,002 92,501 277,504 138,752 69,376 34,688 17,344 8,672 4,336 2,168 1,084 542 271 814 407 1,222 611 1,834 917 2,752 1,376 688 344 172 86

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