221,402

2 × 31 × 3571

Prime Factor Structure

Factorization String 2 × 31 × 3571

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Total Divisors 8

Divisor Sum (σ) 342,912

Proper Divisor Sum 121,510

Digit Sum / Digital Root 11 (Root: 2)

Adjacent Primes #221401 ← → #221411

1 2 31 62 3,571 7,142 110,701 221,402

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

221,402 110,701 332,104 166,052 83,026 41,513 124,540 62,270 31,135 93,406 46,703 140,110 70,055 210,166 105,083 315,250 157,625 472,876 236,438 118,219 354,658 177,329 531,988 265,994 132,997 398,992 199,496 99,748 49,874 24,937 74,812 37,406 18,703 56,110 28,055 84,166 42,083 126,250 63,125 189,376 94,688 47,344 23,672 11,836 5,918 2,959 8,878 4,439 13,318 6,659 19,978 9,989 29,968 14,984 7,492 3,746 1,873 5,620 2,810 1,405

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