2 × 5 × 31 × 677

Prime Factor Structure

Factorization String 2 × 5 × 31 × 677

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 390,528

Proper Divisor Sum 180,658

Digit Sum / Digital Root 26 (Root: 8)

Adjacent Primes #209861 ← → #209887

1 2 5 10 31 62 155 310 677 1,354 3,385 6,770 20,987 41,974 104,935 209,870

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

209,870 104,935 314,806 157,403 472,210 236,105 708,316 354,158 177,079 531,238 265,619 796,858 398,429 1,195,288 597,644 298,822 149,411 448,234 224,117 672,352 336,176 168,088 84,044 42,022 21,011 63,034 31,517 94,552 47,276 23,638 11,819 35,458 17,729 53,188 26,594 13,297 39,892 19,946 9,973 29,920 14,960 7,480 3,740 1,870 935 2,806 1,403 4,210 2,105 6,316 3,158 1,579 4,738 2,369 7,108 3,554 1,777 5,332 2,666 1,333

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