3 × 7 × 43 × 691

Prime Factor Structure

Factorization String 3 × 7 × 43 × 691

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 974,336

Proper Divisor Sum 350,363

Digit Sum / Digital Root 30 (Root: 3)

Adjacent Primes #623963 ← → #623977

1 3 7 21 43 129 301 691 903 2,073 4,837 14,511 29,713 89,139 207,991 623,973

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

623,973 1,871,920 935,960 467,980 233,990 116,995 350,986 175,493 526,480 263,240 131,620 65,810 32,905 98,716 49,358 24,679 74,038 37,019 111,058 55,529 166,588 83,294 41,647 124,942 62,471 187,414 93,707 281,122 140,561 421,684 210,842 105,421 316,264 158,132 79,066 39,533 118,600 59,300 29,650 14,825 44,476 22,238 11,119 33,358 16,679 50,038 25,019 75,058 37,529 112,588 56,294 28,147 84,442 42,221 126,664 63,332 31,666 15,833 47,500 23,750

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