7 × 20731

Prime Factor Structure

Factorization String 7 × 20731

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 165,856

Proper Divisor Sum 20,739

Digit Sum / Digital Root 19 (Root: 1)

Adjacent Primes #145109 ← → #145121

1 7 20,731 145,117

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

145,117 435,352 217,676 108,838 54,419 163,258 81,629 244,888 122,444 61,222 30,611 91,834 45,917 137,752 68,876 34,438 17,219 51,658 25,829 77,488 38,744 19,372 9,686 4,843 14,530 7,265 21,796 10,898 5,449 16,348 8,174 4,087 12,262 6,131 18,394 9,197 27,592 13,796 6,898 3,449 10,348 5,174 2,587 7,762 3,881 11,644 5,822 2,911 8,734 4,367 13,102 6,551 19,654 9,827 29,482 14,741 44,224 22,112 11,056 5,528

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