3 × 31 × 431 × 503

Prime Factor Structure

Factorization String 3 × 31 × 431 × 503

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 27,869,184

Proper Divisor Sum 7,707,435

Digit Sum / Digital Root 30 (Root: 3)

Adjacent Primes #20161727 ← → #20161751

1 3 31 93 431 503 1,293 1,509 13,361 15,593 40,083 46,779 216,793 650,379 6,720,583 20,161,749

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

20,161,749 60,485,248 30,242,624 15,121,312 7,560,656 3,780,328 1,890,164 945,082 472,541 1,417,624 708,812 354,406 177,203 531,610 265,805 797,416 398,708 199,354 99,677 299,032 149,516 74,758 37,379 112,138 56,069 168,208 84,104 42,052 21,026 10,513 31,540 15,770 7,885 23,656 11,828 5,914 2,957 8,872 4,436 2,218 1,109 3,328 1,664 832 416 208 104 52 26 13 40 20 10 5 16 8 4 2 1

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