3 × 7 × 181 × 4057

Prime Factor Structure

Factorization String 3 × 7 × 181 × 4057

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 23,633,792

Proper Divisor Sum 8,213,135

Digit Sum / Digital Root 30 (Root: 3)

Adjacent Primes #15420641 ← → #15420659

1 3 7 21 181 543 1,267 3,801 4,057 12,171 28,399 85,197 734,317 2,202,951 5,140,219 15,420,657

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

15,420,657 46,261,972 23,130,986 11,565,493 34,696,480 17,348,240 8,674,120 4,337,060 2,168,530 1,084,265 3,252,796 1,626,398 813,199 2,439,598 1,219,799 3,659,398 1,829,699 5,489,098 2,744,549 8,233,648 4,116,824 2,058,412 1,029,206 514,603 1,543,810 771,905 2,315,716 1,157,858 578,929 1,736,788 868,394 434,197 1,302,592 651,296 325,648 162,824 81,412 40,706 20,353 61,060 30,530 15,265 45,796 22,898 11,449 34,348 17,174 8,587 25,762 12,881 38,644 19,322 9,661 28,984 14,492 7,246 3,623 10,870 5,435 16,306

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