2 × 7² × 37 × 61

Prime Factor Structure

Factorization String 2 × 7^2 × 37 × 61

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 402,876

Proper Divisor Sum 181,690

Digit Sum / Digital Root 20 (Root: 2)

Adjacent Primes #221173 ← → #221197

1 2 7 14 37 49 61 74 98 122 259 427 518 854 1,813 2,257 2,989 3,626 4,514 5,978 15,799 31,598 110,593 221,186

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

221,186 110,593 331,780 165,890 82,945 248,836 124,418 62,209 186,628 93,314 46,657 139,972 69,986 34,993 104,980 52,490 26,245 78,736 39,368 19,684 9,842 4,921 14,764 7,382 3,691 11,074 5,537 16,612 8,306 4,153 12,460 6,230 3,115 9,346 4,673 14,020 7,010 3,505 10,516 5,258 2,629 7,888 3,944 1,972 986 493 1,480 740 370 185 556 278 139 418 209 628 314 157 472 236

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