3 × 7 × 13 × 2531

Prime Factor Structure

Factorization String 3 × 7 × 13 × 2531

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 1,134,336

Proper Divisor Sum 443,373

Digit Sum / Digital Root 33 (Root: 6)

Adjacent Primes #690953 ← → #690997

1 3 7 13 21 39 91 273 2,531 7,593 17,717 32,903 53,151 98,709 230,321 690,963

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

690,963 2,072,890 1,036,445 3,109,336 1,554,668 777,334 388,667 1,166,002 583,001 1,749,004 874,502 437,251 1,311,754 655,877 1,967,632 983,816 491,908 245,954 122,977 368,932 184,466 92,233 276,700 138,350 69,175 207,526 103,763 311,290 155,645 466,936 233,468 116,734 58,367 175,102 87,551 262,654 131,327 393,982 196,991 590,974 295,487 886,462 443,231 1,329,694 664,847 1,994,542 997,271 2,991,814 1,495,907 4,487,722 2,243,861 6,731,584 3,365,792 1,682,896 841,448 420,724 210,362 105,181 315,544 157,772

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