5² × 7 × 11 × 113

Prime Factor Structure

Factorization String 5^2 × 7 × 11 × 113

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 339,264

Proper Divisor Sum 121,739

Digit Sum / Digital Root 22 (Root: 4)

Adjacent Primes #217519 ← → #217559

1 5 7 11 25 35 55 77 113 175 275 385 565 791 1,243 1,925 2,825 3,955 6,215 8,701 19,775 31,075 43,505 217,525

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

217,525 652,576 326,288 163,144 81,572 40,786 20,393 61,180 30,590 15,295 45,886 22,943 68,830 34,415 103,246 51,623 154,870 77,435 232,306 116,153 348,460 174,230 87,115 261,346 130,673 392,020 196,010 98,005 294,016 147,008 73,504 36,752 18,376 9,188 4,594 2,297 6,892 3,446 1,723 5,170 2,585 7,756 3,878 1,939 5,818 2,909 8,728 4,364 2,182 1,091 3,274 1,637 4,912 2,456 1,228 614 307 922 461 1,384

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