3² × 5² × 47 × 61

Prime Factor Structure

Factorization String 3^2 × 5^2 × 47 × 61

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 36

Divisor Sum (σ) 1,199,328

Proper Divisor Sum 554,253

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #645067 ← → #645077

1 3 5 9 15 25 45 47 61 75 141 183 225 235 305 423 549 705 915 1,175 1,525 2,115 2,745 2,867 3,525 4,575 8,601 10,575 13,725 14,335 25,803 43,005 71,675 129,015 215,025 645,075

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

645,075 1,935,226 967,613 2,902,840 1,451,420 725,710 362,855 1,088,566 544,283 1,632,850 816,425 2,449,276 1,224,638 612,319 1,836,958 918,479 2,755,438 1,377,719 4,133,158 2,066,579 6,199,738 3,099,869 9,299,608 4,649,804 2,324,902 1,162,451 3,487,354 1,743,677 5,231,032 2,615,516 1,307,758 653,879 1,961,638 980,819 2,942,458 1,471,229 4,413,688 2,206,844 1,103,422 551,711 1,655,134 827,567 2,482,702 1,241,351 3,724,054 1,862,027 5,586,082 2,793,041 8,379,124 4,189,562 2,094,781 6,284,344 3,142,172 1,571,086 785,543 2,356,630 1,178,315 3,534,946 1,767,473 5,302,420

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