2 × 7² × 6563

Prime Factor Structure

Factorization String 2 × 7^2 × 6563

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 1,122,444

Proper Divisor Sum 479,270

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #643129 ← → #643183

1 2 7 14 49 98 6,563 13,126 45,941 91,882 321,587 643,174

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

643,174 321,587 964,762 482,381 1,447,144 723,572 361,786 180,893 542,680 271,340 135,670 67,835 203,506 101,753 305,260 152,630 76,315 228,946 114,473 343,420 171,710 85,855 257,566 128,783 386,350 193,175 579,526 289,763 869,290 434,645 1,303,936 651,968 325,984 162,992 81,496 40,748 20,374 10,187 30,562 15,281 45,844 22,922 11,461 34,384 17,192 8,596 4,298 2,149 6,448 3,224 1,612 806 403 1,210 605 1,816 908 454 227 682

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