5 × 13 × 37 × 257

Prime Factor Structure

Factorization String 5 × 13 × 37 × 257

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 823,536

Proper Divisor Sum 205,451

Digit Sum / Digital Root 28 (Root: 1)

Adjacent Primes #618083 ← → #618119

1 5 13 37 65 185 257 481 1,285 2,405 3,341 9,509 16,705 47,545 123,617 618,085

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

618,085 1,854,256 927,128 463,564 231,782 115,891 347,674 173,837 521,512 260,756 130,378 65,189 195,568 97,784 48,892 24,446 12,223 36,670 18,335 55,006 27,503 82,510 41,255 123,766 61,883 185,650 92,825 278,476 139,238 69,619 208,858 104,429 313,288 156,644 78,322 39,161 117,484 58,742 29,371 88,114 44,057 132,172 66,086 33,043 99,130 49,565 148,696 74,348 37,174 18,587 55,762 27,881 83,644 41,822 20,911 62,734 31,367 94,102 47,051 141,154

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