3² × 5 × 29 × 491

Prime Factor Structure

Factorization String 3^2 × 5 × 29 × 491

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 1,151,280

Proper Divisor Sum 510,525

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #640741 ← → #640771

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

640,755 1,922,266 961,133 2,883,400 1,441,700 720,850 360,425 1,081,276 540,638 270,319 810,958 405,479 1,216,438 608,219 1,824,658 912,329 2,736,988 1,368,494 684,247 2,052,742 1,026,371 3,079,114 1,539,557 4,618,672 2,309,336 1,154,668 577,334 288,667 866,002 433,001 1,299,004 649,502 324,751 974,254 487,127 1,461,382 730,691 2,192,074 1,096,037 3,288,112 1,644,056 822,028 411,014 205,507 616,522 308,261 924,784 462,392 231,196 115,598 57,799 173,398 86,699 260,098 130,049 390,148 195,074 97,537 292,612 146,306

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