1,067,638

2 × 11 × 13 × 3733

1,067,638 has digital root 4. The neighboring primes are 1067621 and 1067639; its proper-divisor sum differs from the starting integer by -253,340.

Prime Factor Structure

Factorization String 2 × 11 × 13 × 3733

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Total Divisors 16

Divisor Sum (σ) 1,881,936

Proper Divisor Sum 814,298

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #1067621 ← → #1067639

1 2 11 13 22 26 143 286 3,733 7,466 41,063 48,529 82,126 97,058 533,819 1,067,638

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

1,067,638 533,819 1,601,458 800,729 2,402,188 1,201,094 600,547 1,801,642 900,821 2,702,464 1,351,232 675,616 337,808 168,904 84,452 42,226 21,113 63,340 31,670 15,835 47,506 23,753 71,260 35,630 17,815 53,446 26,723 80,170 40,085 120,256 60,128 30,064 15,032 7,516 3,758 1,879 5,638 2,819 8,458 4,229 12,688 6,344 3,172 1,586 793 2,380 1,190 595 1,786 893 2,680 1,340 670 335 1,006 503 1,510 755 2,266 1,133

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