2² × 5 × 31 × 653

Prime Factor Structure

Factorization String 2^2 × 5 × 31 × 653

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 878,976

Proper Divisor Sum 474,116

Digit Sum / Digital Root 22 (Root: 4)

Adjacent Primes #404851 ← → #404941

1 2 4 5 10 20 31 62 124 155 310 620 653 1,306 2,612 3,265 6,530 13,060 20,243 40,486 80,972 101,215 202,430 404,860

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

404,860 202,430 101,215 303,646 151,823 455,470 227,735 683,206 341,603 1,024,810 512,405 1,537,216 768,608 384,304 192,152 96,076 48,038 24,019 72,058 36,029 108,088 54,044 27,022 13,511 40,534 20,267 60,802 30,401 91,204 45,602 22,801 68,404 34,202 17,101 51,304 25,652 12,826 6,413 19,240 9,620 4,810 2,405 7,216 3,608 1,804 902 451 1,354 677 2,032 1,016 508 254 127 382 191 574 287 862 431

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