3² × 7 × 11 × 37

Prime Factor Structure

Factorization String 3^2 × 7 × 11 × 37

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 47,424

Proper Divisor Sum 21,783

Digit Sum / Digital Root 18 (Root: 9)

Adjacent Primes #25639 ← → #25643

1 3 7 9 11 21 33 37 63 77 99 111 231 259 333 407 693 777 1,221 2,331 2,849 3,663 8,547 25,641

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

25,641 76,924 38,462 19,231 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 1,160 580 290 145 436 218 109 328 164

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