13² × 23 × 491

Prime Factor Structure

Factorization String 13^2 × 23 × 491

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 2,160,864

Proper Divisor Sum 252,347

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #1908499 ← → #1908521

1 13 23 169 299 491 3,887 6,383 11,293 82,979 146,809 1,908,517

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

1,908,517 5,725,552 2,862,776 1,431,388 715,694 357,847 1,073,542 536,771 1,610,314 805,157 2,415,472 1,207,736 603,868 301,934 150,967 452,902 226,451 679,354 339,677 1,019,032 509,516 254,758 127,379 382,138 191,069 573,208 286,604 143,302 71,651 214,954 107,477 322,432 161,216 80,608 40,304 20,152 10,076 5,038 2,519 7,558 3,779 11,338 5,669 17,008 8,504 4,252 2,126 1,063 3,190 1,595 4,786 2,393 7,180 3,590 1,795 5,386 2,693 8,080 4,040 2,020

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