31 × 21683

Prime Factor Structure

Factorization String 31 × 21683

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 693,888

Proper Divisor Sum 21,715

Digit Sum / Digital Root 26 (Root: 8)

Adjacent Primes #672169 ← → #672181

1 31 21,683 672,173

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

672,173 2,016,520 1,008,260 504,130 252,065 756,196 378,098 189,049 567,148 283,574 141,787 425,362 212,681 638,044 319,022 159,511 478,534 239,267 717,802 358,901 1,076,704 538,352 269,176 134,588 67,294 33,647 100,942 50,471 151,414 75,707 227,122 113,561 340,684 170,342 85,171 255,514 127,757 383,272 191,636 95,818 47,909 143,728 71,864 35,932 17,966 8,983 26,950 13,475 40,426 20,213 60,640 30,320 15,160 7,580 3,790 1,895 5,686 2,843 8,530 4,265

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