3² × 139 × 257

Prime Factor Structure

Factorization String 3^2 × 139 × 257

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 469,560

Proper Divisor Sum 148,053

Digit Sum / Digital Root 18 (Root: 9)

Adjacent Primes #321469 ← → #321509

1 3 9 139 257 417 771 1,251 2,313 35,723 107,169 321,507

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

321,507 964,522 482,261 1,446,784 723,392 361,696 180,848 90,424 45,212 22,606 11,303 33,910 16,955 50,866 25,433 76,300 38,150 19,075 57,226 28,613 85,840 42,920 21,460 10,730 5,365 16,096 8,048 4,024 2,012 1,006 503 1,510 755 2,266 1,133 3,400 1,700 850 425 1,276 638 319 958 479 1,438 719 2,158 1,079 3,238 1,619 4,858 2,429 7,288 3,644 1,822 911 2,734 1,367 4,102 2,051

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