1,320,573

3 × 29 × 43 × 353

Prime Factor Structure

Factorization String 3 × 29 × 43 × 353

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Total Divisors 16

Divisor Sum (σ) 1,869,120

Proper Divisor Sum 548,547

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #1320541 ← → #1320607

1 3 29 43 87 129 353 1,059 1,247 3,741 10,237 15,179 30,711 45,537 440,191 1,320,573

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

1,320,573 3,961,720 1,980,860 990,430 495,215 1,485,646 742,823 2,228,470 1,114,235 3,342,706 1,671,353 5,014,060 2,507,030 1,253,515 3,760,546 1,880,273 5,640,820 2,820,410 1,410,205 4,230,616 2,115,308 1,057,654 528,827 1,586,482 793,241 2,379,724 1,189,862 594,931 1,784,794 892,397 2,677,192 1,338,596 669,298 334,649 1,003,948 501,974 250,987 752,962 376,481 1,129,444 564,722 282,361 847,084 423,542 211,771 635,314 317,657 952,972 476,486 238,243 714,730 357,365 1,072,096 536,048 268,024 134,012 67,006 33,503 100,510 50,255

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