3 × 5 × 13² × 83

Prime Factor Structure

Factorization String 3 × 5 × 13^2 × 83

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 368,928

Proper Divisor Sum 158,523

Digit Sum / Digital Root 12 (Root: 3)

Adjacent Primes #210403 ← → #210407

1 3 5 13 15 39 65 83 169 195 249 415 507 845 1,079 1,245 2,535 3,237 5,395 14,027 16,185 42,081 70,135 210,405

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

210,405 631,216 315,608 157,804 78,902 39,451 118,354 59,177 177,532 88,766 44,383 133,150 66,575 199,726 99,863 299,590 149,795 449,386 224,693 674,080 337,040 168,520 84,260 42,130 21,065 63,196 31,598 15,799 47,398 23,699 71,098 35,549 106,648 53,324 26,662 13,331 39,994 19,997 59,992 29,996 14,998 7,499 22,498 11,249 33,748 16,874 8,437 25,312 12,656 6,328 3,164 1,582 791 2,374 1,187 3,562 1,781 5,344 2,672 1,336

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