2² × 5 × 11 × 1307

Prime Factor Structure

Factorization String 2^2 × 5 × 11 × 1307

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 659,232

Proper Divisor Sum 371,692

Digit Sum / Digital Root 26 (Root: 8)

Adjacent Primes #287537 ← → #287549

1 2 4 5 10 11 20 22 44 55 110 220 1,307 2,614 5,228 6,535 13,070 14,377 26,140 28,754 57,508 71,885 143,770 287,540

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

287,540 143,770 71,885 215,656 107,828 53,914 26,957 80,872 40,436 20,218 10,109 30,328 15,164 7,582 3,791 11,374 5,687 17,062 8,531 25,594 12,797 38,392 19,196 9,598 4,799 14,398 7,199 21,598 10,799 32,398 16,199 48,598 24,299 72,898 36,449 109,348 54,674 27,337 82,012 41,006 20,503 61,510 30,755 92,266 46,133 138,400 69,200 34,600 17,300 8,650 4,325 12,976 6,488 3,244 1,622 811 2,434 1,217 3,652 1,826

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