2² × 5 × 61 × 109

Prime Factor Structure

Factorization String 2^2 × 5 × 61 × 109

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 286,440

Proper Divisor Sum 153,460

Digit Sum / Digital Root 23 (Root: 5)

Adjacent Primes #132971 ← → #132989

1 2 4 5 10 20 61 109 122 218 244 305 436 545 610 1,090 1,220 2,180 6,649 13,298 26,596 33,245 66,490 132,980

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

132,980 66,490 33,245 99,736 49,868 24,934 12,467 37,402 18,701 56,104 28,052 14,026 7,013 21,040 10,520 5,260 2,630 1,315 3,946 1,973 5,920 2,960 1,480 740 370 185 556 278 139 418 209 628 314 157 472 236 118 59 178 89 268 134 67 202 101 304 152 76 38 19 58 29 88 44 22 11 34 17 52 26

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