13² × 19 × 137

Prime Factor Structure

Factorization String 13^2 × 19 × 137

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 505,080

Proper Divisor Sum 65,173

Digit Sum / Digital Root 32 (Root: 5)

Adjacent Primes #439903 ← → #439919

1 13 19 137 169 247 1,781 2,603 3,211 23,153 33,839 439,907

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

439,907 1,319,722 659,861 1,979,584 989,792 494,896 247,448 123,724 61,862 30,931 92,794 46,397 139,192 69,596 34,798 17,399 52,198 26,099 78,298 39,149 117,448 58,724 29,362 14,681 44,044 22,022 11,011 33,034 16,517 49,552 24,776 12,388 6,194 3,097 9,292 4,646 2,323 6,970 3,485 10,456 5,228 2,614 1,307 3,922 1,961 5,884 2,942 1,471 4,414 2,207 6,622 3,311 9,934 4,967 14,902 7,451 22,354 11,177 33,532 16,766

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