3 × 7 × 41 × 953

Prime Factor Structure

Factorization String 3 × 7 × 41 × 953

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 1,282,176

Proper Divisor Sum 461,643

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #820489 ← → #820537

1 3 7 21 41 123 287 861 953 2,859 6,671 20,013 39,073 117,219 273,511 820,533

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

820,533 2,461,600 1,230,800 615,400 307,700 153,850 76,925 230,776 115,388 57,694 28,847 86,542 43,271 129,814 64,907 194,722 97,361 292,084 146,042 73,021 219,064 109,532 54,766 27,383 82,150 41,075 123,226 61,613 184,840 92,420 46,210 23,105 69,316 34,658 17,329 51,988 25,994 12,997 38,992 19,496 9,748 4,874 2,437 7,312 3,656 1,828 914 457 1,372 686 343 1,030 515 1,546 773 2,320 1,160 580 290 145

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