287,350

2 × 5² × 7 × 821

Prime Factor Structure

Factorization String 2 × 5^2 × 7 × 821

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Total Divisors 24

Divisor Sum (σ) 611,568

Proper Divisor Sum 324,218

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #287347 ← → #287383

1 2 5 7 10 14 25 35 50 70 175 350 821 1,642 4,105 5,747 8,210 11,494 20,525 28,735 41,050 57,470 143,675 287,350

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

287,350 143,675 431,026 215,513 646,540 323,270 161,635 484,906 242,453 727,360 363,680 181,840 90,920 45,460 22,730 11,365 34,096 17,048 8,524 4,262 2,131 6,394 3,197 9,592 4,796 2,398 1,199 3,598 1,799 5,398 2,699 8,098 4,049 12,148 6,074 3,037 9,112 4,556 2,278 1,139 3,418 1,709 5,128 2,564 1,282 641 1,924 962 481 1,444 722 361 1,084 542 271 814 407 1,222 611 1,834

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