80,505

3² × 5 × 1789

Prime Factor Structure

Factorization String 3^2 × 5 × 1789

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Total Divisors 12

Divisor Sum (σ) 139,620

Proper Divisor Sum 59,115

Digit Sum / Digital Root 18 (Root: 9)

Adjacent Primes #80491 ← → #80513

1 3 5 9 15 45 1,789 5,367 8,945 16,101 26,835 80,505

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

80,505 241,516 120,758 60,379 181,138 90,569 271,708 135,854 67,927 203,782 101,891 305,674 152,837 458,512 229,256 114,628 57,314 28,657 85,972 42,986 21,493 64,480 32,240 16,120 8,060 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 1,615 4,846 2,423 7,270 3,635 10,906 5,453 16,360 8,180 4,090 2,045 6,136 3,068

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