671,979

3 × 7 × 11 × 2909

Prime Factor Structure

Factorization String 3 × 7 × 11 × 2909

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Total Divisors 16

Divisor Sum (σ) 1,117,440

Proper Divisor Sum 445,461

Digit Sum / Digital Root 39 (Root: 3)

Adjacent Primes #671971 ← → #671981

1 3 7 11 21 33 77 231 2,909 8,727 20,363 31,999 61,089 95,997 223,993 671,979

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

671,979 2,015,938 1,007,969 3,023,908 1,511,954 755,977 2,267,932 1,133,966 566,983 1,700,950 850,475 2,551,426 1,275,713 3,827,140 1,913,570 956,785 2,870,356 1,435,178 717,589 2,152,768 1,076,384 538,192 269,096 134,548 67,274 33,637 100,912 50,456 25,228 12,614 6,307 18,922 9,461 28,384 14,192 7,096 3,548 1,774 887 2,662 1,331 3,994 1,997 5,992 2,996 1,498 749 2,248 1,124 562 281 844 422 211 634 317 952 476 238 119

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