3 × 5 × 137 × 691

Prime Factor Structure

Factorization String 3 × 5 × 137 × 691

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 2,291,904

Proper Divisor Sum 871,899

Digit Sum / Digital Root 12 (Root: 3)

Adjacent Primes #1419973 ← → #1420009

1 3 5 15 137 411 685 691 2,055 2,073 3,455 10,365 94,667 284,001 473,335 1,420,005

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

1,420,005 4,260,016 2,130,008 1,065,004 532,502 266,251 798,754 399,377 1,198,132 599,066 299,533 898,600 449,300 224,650 112,325 336,976 168,488 84,244 42,122 21,061 63,184 31,592 15,796 7,898 3,949 11,848 5,924 2,962 1,481 4,444 2,222 1,111 3,334 1,667 5,002 2,501 7,504 3,752 1,876 938 469 1,408 704 352 176 88 44 22 11 34 17 52 26 13 40 20 10 5 16 8

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