2² × 3² × 7 × 13 × 197

Prime Factor Structure

Factorization String 2^2 × 3^2 × 7 × 13 × 197

Distinct Prime Factors 5

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 72

Divisor Sum (σ) 2,018,016

Proper Divisor Sum 1,372,644

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #645367 ← → #645383

1 2 3 4 6 7 9 12 13 14 18 21 26 28 36 39 42 52 63 78 84 91 117 126 156 182 197 234 252 273 364 394 468 546 591 788 819 1,092 1,182 1,379 1,638 1,773 2,364 2,561 2,758 3,276 3,546 4,137 5,122 5,516 7,092 7,683 8,274 10,244 12,411 15,366 16,548 17,927 23,049 24,822

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

645,372 322,686 161,343 484,030 242,015 726,046 363,023 1,089,070 544,535 1,633,606 816,803 2,450,410 1,225,205 3,675,616 1,837,808 918,904 459,452 229,726 114,863 344,590 172,295 516,886 258,443 775,330 387,665 1,162,996 581,498 290,749 872,248 436,124 218,062 109,031 327,094 163,547 490,642 245,321 735,964 367,982 183,991 551,974 275,987 827,962 413,981 1,241,944 620,972 310,486 155,243 465,730 232,865 698,596 349,298 174,649 523,948 261,974 130,987 392,962 196,481 589,444 294,722 147,361

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