3² × 7² × 353

Prime Factor Structure

Factorization String 3^2 × 7^2 × 353

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 18

Divisor Sum (σ) 262,314

Proper Divisor Sum 106,641

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #155671 ← → #155689

1 3 7 9 21 49 63 147 353 441 1,059 2,471 3,177 7,413 17,297 22,239 51,891 155,673

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

155,673 467,020 233,510 116,755 350,266 175,133 525,400 262,700 131,350 65,675 197,026 98,513 295,540 147,770 73,885 221,656 110,828 55,414 27,707 83,122 41,561 124,684 62,342 31,171 93,514 46,757 140,272 70,136 35,068 17,534 8,767 26,302 13,151 39,454 19,727 59,182 29,591 88,774 44,387 133,162 66,581 199,744 99,872 49,936 24,968 12,484 6,242 3,121 9,364 4,682 2,341 7,024 3,512 1,756 878 439 1,318 659 1,978 989

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