2² × 5 × 20771

Prime Factor Structure

Factorization String 2^2 × 5 × 20771

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 872,424

Proper Divisor Sum 457,004

Digit Sum / Digital Root 16 (Root: 7)

Adjacent Primes #415409 ← → #415427

1 2 4 5 10 20 20,771 41,542 83,084 103,855 207,710 415,420

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

415,420 207,710 103,855 311,566 155,783 467,350 233,675 701,026 350,513 1,051,540 525,770 262,885 788,656 394,328 197,164 98,582 49,291 147,874 73,937 221,812 110,906 55,453 166,360 83,180 41,590 20,795 62,386 31,193 93,580 46,790 23,395 70,186 35,093 105,280 52,640 26,320 13,160 6,580 3,290 1,645 4,936 2,468 1,234 617 1,852 926 463 1,390 695 2,086 1,043 3,130 1,565 4,696 2,348 1,174 587 1,762 881 2,644

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