5 × 31 × 223 × 619

Prime Factor Structure

Factorization String 5 × 31 × 223 × 619

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 26,664,960

Proper Divisor Sum 5,269,225

Digit Sum / Digital Root 35 (Root: 8)

Adjacent Primes #21395723 ← → #21395747

1 5 31 155 223 619 1,115 3,095 6,913 19,189 34,565 95,945 138,037 690,185 4,279,147 21,395,735

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

21,395,735 64,187,206 32,093,603 96,280,810 48,140,405 144,421,216 72,210,608 36,105,304 18,052,652 9,026,326 4,513,163 13,539,490 6,769,745 20,309,236 10,154,618 5,077,309 15,231,928 7,615,964 3,807,982 1,903,991 5,711,974 2,855,987 8,567,962 4,283,981 12,851,944 6,425,972 3,212,986 1,606,493 4,819,480 2,409,740 1,204,870 602,435 1,807,306 903,653 2,710,960 1,355,480 677,740 338,870 169,435 508,306 254,153 762,460 381,230 190,615 571,846 285,923 857,770 428,885 1,286,656 643,328 321,664 160,832 80,416 40,208 20,104 10,052 5,026 2,513 7,540 3,770

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