61 × 257

Prime Factor Structure

Factorization String 61 × 257

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 15,996

Proper Divisor Sum 319

Digit Sum / Digital Root 26 (Root: 8)

Adjacent Primes #15671 ← → #15679

1 61 257 15,677

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

15,677 47,032 23,516 11,758 5,879 17,638 8,819 26,458 13,229 39,688 19,844 9,922 4,961 14,884 7,442 3,721 11,164 5,582 2,791 8,374 4,187 12,562 6,281 18,844 9,422 4,711 14,134 7,067 21,202 10,601 31,804 15,902 7,951 23,854 11,927 35,782 17,891 53,674 26,837 80,512 40,256 20,128 10,064 5,032 2,516 1,258 629 1,888 944 472 236 118 59 178 89 268 134 67 202 101

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