7 × 31 × 137 × 673

Prime Factor Structure

Factorization String 7 × 31 × 137 × 673

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 23,811,072

Proper Divisor Sum 3,803,455

Digit Sum / Digital Root 23 (Root: 5)

Adjacent Primes #20007601 ← → #20007643

1 7 31 137 217 673 959 4,247 4,711 20,863 29,729 92,201 146,041 645,407 2,858,231 20,007,617

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

20,007,617 60,022,852 30,011,426 15,005,713 45,017,140 22,508,570 11,254,285 33,762,856 16,881,428 8,440,714 4,220,357 12,661,072 6,330,536 3,165,268 1,582,634 791,317 2,373,952 1,186,976 593,488 296,744 148,372 74,186 37,093 111,280 55,640 27,820 13,910 6,955 20,866 10,433 31,300 15,650 7,825 23,476 11,738 5,869 17,608 8,804 4,402 2,201 6,604 3,302 1,651 4,954 2,477 7,432 3,716 1,858 929 2,788 1,394 697 2,092 1,046 523 1,570 785 2,356 1,178 589

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