3 × 7 × 29 × 211

Prime Factor Structure

Factorization String 3 × 7 × 29 × 211

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 203,520

Proper Divisor Sum 75,021

Digit Sum / Digital Root 33 (Root: 6)

Adjacent Primes #128489 ← → #128509

1 3 7 21 29 87 203 211 609 633 1,477 4,431 6,119 18,357 42,833 128,499

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

128,499 385,498 192,749 578,248 289,124 144,562 72,281 216,844 108,422 54,211 162,634 81,317 243,952 121,976 60,988 30,494 15,247 45,742 22,871 68,614 34,307 102,922 51,461 154,384 77,192 38,596 19,298 9,649 28,948 14,474 7,237 21,712 10,856 5,428 2,714 1,357 4,072 2,036 1,018 509 1,528 764 382 191 574 287 862 431 1,294 647 1,942 971 2,914 1,457 4,372 2,186 1,093 3,280 1,640 820

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