13 × 31 × 971

Prime Factor Structure

Factorization String 13 × 31 × 971

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 435,456

Proper Divisor Sum 44,143

Digit Sum / Digital Root 20 (Root: 2)

Adjacent Primes #391301 ← → #391331

1 13 31 403 971 12,623 30,101 391,313

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

391,313 1,173,940 586,970 293,485 880,456 440,228 220,114 110,057 330,172 165,086 82,543 247,630 123,815 371,446 185,723 557,170 278,585 835,756 417,878 208,939 626,818 313,409 940,228 470,114 235,057 705,172 352,586 176,293 528,880 264,440 132,220 66,110 33,055 99,166 49,583 148,750 74,375 223,126 111,563 334,690 167,345 502,036 251,018 125,509 376,528 188,264 94,132 47,066 23,533 70,600 35,300 17,650 8,825 26,476 13,238 6,619 19,858 9,929 29,788 14,894

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