3² × 7² × 19²

Prime Factor Structure

Factorization String 3^2 × 7^2 × 19^2

Distinct Prime Factors 3

Square Status Yes (√159201 = 399)

Abundance Measure Deficient

Analytical Properties

Total Divisors 27

Divisor Sum (σ) 282,321

Proper Divisor Sum 123,120

Digit Sum / Digital Root 18 (Root: 9)

Adjacent Primes #159199 ← → #159209

1 3 7 9 19 21 49 57 63 133 147 171 361 399 441 931 1,083 1,197 2,527 2,793 3,249 7,581 8,379 17,689 22,743 53,067 159,201

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

159,201 477,604 238,802 119,401 358,204 179,102 89,551 268,654 134,327 402,982 201,491 604,474 302,237 906,712 453,356 226,678 113,339 340,018 170,009 510,028 255,014 127,507 382,522 191,261 573,784 286,892 143,446 71,723 215,170 107,585 322,756 161,378 80,689 242,068 121,034 60,517 181,552 90,776 45,388 22,694 11,347 34,042 17,021 51,064 25,532 12,766 6,383 19,150 9,575 28,726 14,363 43,090 21,545 64,636 32,318 16,159 48,478 24,239 72,718 36,359

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