2² × 3 × 5 × 257

Prime Factor Structure

Factorization String 2^2 × 3 × 5 × 257

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 43,344

Proper Divisor Sum 27,924

Digit Sum / Digital Root 12 (Root: 3)

Adjacent Primes #15413 ← → #15427

1 2 3 4 5 6 10 12 15 20 30 60 257 514 771 1,028 1,285 1,542 2,570 3,084 3,855 5,140 7,710 15,420

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

15,420 7,710 3,855 11,566 5,783 17,350 8,675 26,026 13,013 39,040 19,520 9,760 4,880 2,440 1,220 610 305 916 458 229 688 344 172 86 43 130 65 196 98 49 148 74 37 112 56 28 14 7 22 11 34 17 52 26 13 40 20 10 5 16 8 4 2 1

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