3 × 7 × 19 × 157

Prime Factor Structure

Factorization String 3 × 7 × 19 × 157

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 101,120

Proper Divisor Sum 38,477

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #62639 ← → #62653

1 3 7 19 21 57 133 157 399 471 1,099 2,983 3,297 8,949 20,881 62,643

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

62,643 187,930 93,965 281,896 140,948 70,474 35,237 105,712 52,856 26,428 13,214 6,607 19,822 9,911 29,734 14,867 44,602 22,301 66,904 33,452 16,726 8,363 25,090 12,545 37,636 18,818 9,409 28,228 14,114 7,057 21,172 10,586 5,293 15,880 7,940 3,970 1,985 5,956 2,978 1,489 4,468 2,234 1,117 3,352 1,676 838 419 1,258 629 1,888 944 472 236 118 59 178 89 268 134 67

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