2² × 5 × 47 × 431

Prime Factor Structure

Factorization String 2^2 × 5 × 47 × 431

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 870,912

Proper Divisor Sum 465,772

Digit Sum / Digital Root 14 (Root: 5)

Adjacent Primes #405091 ← → #405143

1 2 4 5 10 20 47 94 188 235 431 470 862 940 1,724 2,155 4,310 8,620 20,257 40,514 81,028 101,285 202,570 405,140

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

405,140 202,570 101,285 303,856 151,928 75,964 37,982 18,991 56,974 28,487 85,462 42,731 128,194 64,097 192,292 96,146 48,073 144,220 72,110 36,055 108,166 54,083 162,250 81,125 243,376 121,688 60,844 30,422 15,211 45,634 22,817 68,452 34,226 17,113 51,340 25,670 12,835 38,506 19,253 57,760 28,880 14,440 7,220 3,610 1,805 5,416 2,708 1,354 677 2,032 1,016 508 254 127 382 191 574 287 862 431

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