2² × 3² × 37 × 157

Prime Factor Structure

Factorization String 2^2 × 3^2 × 37 × 157

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 36

Divisor Sum (σ) 546,364

Proper Divisor Sum 337,240

Digit Sum / Digital Root 18 (Root: 9)

Adjacent Primes #209123 ← → #209147

1 2 3 4 6 9 12 18 36 37 74 111 148 157 222 314 333 444 471 628 666 942 1,332 1,413 1,884 2,826 5,652 5,809 11,618 17,427 23,236 34,854 52,281 69,708 104,562 209,124

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

209,124 104,562 52,281 156,844 78,422 39,211 117,634 58,817 176,452 88,226 44,113 132,340 66,170 33,085 99,256 49,628 24,814 12,407 37,222 18,611 55,834 27,917 83,752 41,876 20,938 10,469 31,408 15,704 7,852 3,926 1,963 5,890 2,945 8,836 4,418 2,209 6,628 3,314 1,657 4,972 2,486 1,243 3,730 1,865 5,596 2,798 1,399 4,198 2,099 6,298 3,149 9,448 4,724 2,362 1,181 3,544 1,772 886 443 1,330

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