3 × 7 × 61 × 397

Prime Factor Structure

Factorization String 3 × 7 × 61 × 397

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 789,632

Proper Divisor Sum 281,075

Digit Sum / Digital Root 30 (Root: 3)

Adjacent Primes #508549 ← → #508559

1 3 7 21 61 183 397 427 1,191 1,281 2,779 8,337 24,217 72,651 169,519 508,557

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

508,557 1,525,672 762,836 381,418 190,709 572,128 286,064 143,032 71,516 35,758 17,879 53,638 26,819 80,458 40,229 120,688 60,344 30,172 15,086 7,543 22,630 11,315 33,946 16,973 50,920 25,460 12,730 6,365 19,096 9,548 4,774 2,387 7,162 3,581 10,744 5,372 2,686 1,343 4,030 2,015 6,046 3,023 9,070 4,535 13,606 6,803 20,410 10,205 30,616 15,308 7,654 3,827 11,482 5,741 17,224 8,612 4,306 2,153 6,460 3,230

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