3 × 7 × 139 × 233

Prime Factor Structure

Factorization String 3 × 7 × 139 × 233

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 1,048,320

Proper Divisor Sum 368,193

Digit Sum / Digital Root 24 (Root: 6)

Adjacent Primes #680123 ← → #680129

1 3 7 21 139 233 417 699 973 1,631 2,919 4,893 32,387 97,161 226,709 680,127

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

680,127 2,040,382 1,020,191 3,060,574 1,530,287 4,590,862 2,295,431 6,886,294 3,443,147 10,329,442 5,164,721 15,494,164 7,747,082 3,873,541 11,620,624 5,810,312 2,905,156 1,452,578 726,289 2,178,868 1,089,434 544,717 1,634,152 817,076 408,538 204,269 612,808 306,404 153,202 76,601 229,804 114,902 57,451 172,354 86,177 258,532 129,266 64,633 193,900 96,950 48,475 145,426 72,713 218,140 109,070 54,535 163,606 81,803 245,410 122,705 368,116 184,058 92,029 276,088 138,044 69,022 34,511 103,534 51,767 155,302

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