2² × 5 × 7 × 1289

Prime Factor Structure

Factorization String 2^2 × 5 × 7 × 1289

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 433,440

Proper Divisor Sum 252,980

Digit Sum / Digital Root 19 (Root: 1)

Adjacent Primes #180437 ← → #180463

1 2 4 5 7 10 14 20 28 35 70 140 1,289 2,578 5,156 6,445 9,023 12,890 18,046 25,780 36,092 45,115 90,230 180,460

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

180,460 90,230 45,115 135,346 67,673 203,020 101,510 50,755 152,266 76,133 228,400 114,200 57,100 28,550 14,275 42,826 21,413 64,240 32,120 16,060 8,030 4,015 12,046 6,023 18,070 9,035 27,106 13,553 40,660 20,330 10,165 30,496 15,248 7,624 3,812 1,906 953 2,860 1,430 715 2,146 1,073 3,220 1,610 805 2,416 1,208 604 302 151 454 227 682 341 1,024 512 256 128 64 32

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