521 × 1553

Prime Factor Structure

Factorization String 521 × 1553

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 811,188

Proper Divisor Sum 2,075

Digit Sum / Digital Root 22 (Root: 4)

Adjacent Primes #809101 ← → #809141

1 521 1,553 809,113

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

809,113 2,427,340 1,213,670 606,835 1,820,506 910,253 2,730,760 1,365,380 682,690 341,345 1,024,036 512,018 256,009 768,028 384,014 192,007 576,022 288,011 864,034 432,017 1,296,052 648,026 324,013 972,040 486,020 243,010 121,505 364,516 182,258 91,129 273,388 136,694 68,347 205,042 102,521 307,564 153,782 76,891 230,674 115,337 346,012 173,006 86,503 259,510 129,755 389,266 194,633 583,900 291,950 145,975 437,926 218,963 656,890 328,445 985,336 492,668 246,334 123,167 369,502 184,751

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