689,765

5 × 29 × 67 × 71

Prime Factor Structure

Factorization String 5 × 29 × 67 × 71

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Total Divisors 16

Divisor Sum (σ) 881,280

Proper Divisor Sum 191,515

Digit Sum / Digital Root 41 (Root: 5)

Adjacent Primes #689761 ← → #689771

1 5 29 67 71 145 335 355 1,943 2,059 4,757 9,715 10,295 23,785 137,953 689,765

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

689,765 2,069,296 1,034,648 517,324 258,662 129,331 387,994 193,997 581,992 290,996 145,498 72,749 218,248 109,124 54,562 27,281 81,844 40,922 20,461 61,384 30,692 15,346 7,673 23,020 11,510 5,755 17,266 8,633 25,900 12,950 6,475 19,426 9,713 29,140 14,570 7,285 21,856 10,928 5,464 2,732 1,366 683 2,050 1,025 3,076 1,538 769 2,308 1,154 577 1,732 866 433 1,300 650 325 976 488 244 122

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