3 × 7 × 31 × 61

Prime Factor Structure

Factorization String 3 × 7 × 31 × 61

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 63,488

Proper Divisor Sum 23,777

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #39709 ← → #39719

1 3 7 21 31 61 93 183 217 427 651 1,281 1,891 5,673 13,237 39,711

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

39,711 119,134 59,567 178,702 89,351 268,054 134,027 402,082 201,041 603,124 301,562 150,781 452,344 226,172 113,086 56,543 169,630 84,815 254,446 127,223 381,670 190,835 572,506 286,253 858,760 429,380 214,690 107,345 322,036 161,018 80,509 241,528 120,764 60,382 30,191 90,574 45,287 135,862 67,931 203,794 101,897 305,692 152,846 76,423 229,270 114,635 343,906 171,953 515,860 257,930 128,965 386,896 193,448 96,724 48,362 24,181 72,544 36,272 18,136 9,068

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