1,640,002

2 × 7 × 13 × 9011

Prime Factor Structure

Factorization String 2 × 7 × 13 × 9011

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Total Divisors 16

Divisor Sum (σ) 3,028,032

Proper Divisor Sum 1,388,030

Digit Sum / Digital Root 13 (Root: 4)

Adjacent Primes #1639999 ← → #1640017

1 2 7 13 14 26 91 182 9,011 18,022 63,077 117,143 126,154 234,286 820,001 1,640,002

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

1,640,002 820,001 2,460,004 1,230,002 615,001 1,845,004 922,502 461,251 1,383,754 691,877 2,075,632 1,037,816 518,908 259,454 129,727 389,182 194,591 583,774 291,887 875,662 437,831 1,313,494 656,747 1,970,242 985,121 2,955,364 1,477,682 738,841 2,216,524 1,108,262 554,131 1,662,394 831,197 2,493,592 1,246,796 623,398 311,699 935,098 467,549 1,402,648 701,324 350,662 175,331 525,994 262,997 788,992 394,496 197,248 98,624 49,312 24,656 12,328 6,164 3,082 1,541 4,624 2,312 1,156 578 289

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