2² × 5 × 7 × 1549

Prime Factor Structure

Factorization String 2^2 × 5 × 7 × 1549

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 520,800

Proper Divisor Sum 303,940

Digit Sum / Digital Root 23 (Root: 5)

Adjacent Primes #216859 ← → #216877

1 2 4 5 7 10 14 20 28 35 70 140 1,549 3,098 6,196 7,745 10,843 15,490 21,686 30,980 43,372 54,215 108,430 216,860

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

216,860 108,430 54,215 162,646 81,323 243,970 121,985 365,956 182,978 91,489 274,468 137,234 68,617 205,852 102,926 51,463 154,390 77,195 231,586 115,793 347,380 173,690 86,845 260,536 130,268 65,134 32,567 97,702 48,851 146,554 73,277 219,832 109,916 54,958 27,479 82,438 41,219 123,658 61,829 185,488 92,744 46,372 23,186 11,593 34,780 17,390 8,695 26,086 13,043 39,130 19,565 58,696 29,348 14,674 7,337 22,012 11,006 5,503 16,510 8,255

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