2² × 7 × 71 × 109

Prime Factor Structure

Factorization String 2^2 × 7 × 71 × 109

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 443,520

Proper Divisor Sum 226,828

Digit Sum / Digital Root 26 (Root: 8)

Adjacent Primes #216679 ← → #216703

1 2 4 7 14 28 71 109 142 218 284 436 497 763 994 1,526 1,988 3,052 7,739 15,478 30,956 54,173 108,346 216,692

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

216,692 108,346 54,173 162,520 81,260 40,630 20,315 60,946 30,473 91,420 45,710 22,855 68,566 34,283 102,850 51,425 154,276 77,138 38,569 115,708 57,854 28,927 86,782 43,391 130,174 65,087 195,262 97,631 292,894 146,447 439,342 219,671 659,014 329,507 988,522 494,261 1,482,784 741,392 370,696 185,348 92,674 46,337 139,012 69,506 34,753 104,260 52,130 26,065 78,196 39,098 19,549 58,648 29,324 14,662 7,331 21,994 10,997 32,992 16,496 8,248

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