2⁴ × 3 × 5 × 257

Prime Factor Structure

Factorization String 2^4 × 3 × 5 × 257

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 40

Divisor Sum (σ) 191,952

Proper Divisor Sum 130,272

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #61673 ← → #61681

1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 257 514 771 1,028 1,285 1,542 2,056 2,570 3,084 3,855 4,112 5,140 6,168 7,710 10,280 12,336 15,420 20,560 30,840 61,680

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

61,680 30,840 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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