2² × 5 × 31 × 89

Prime Factor Structure

Factorization String 2^2 × 5 × 31 × 89

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 120,960

Proper Divisor Sum 65,780

Digit Sum / Digital Root 19 (Root: 1)

Adjacent Primes #55171 ← → #55201

1 2 4 5 10 20 31 62 89 124 155 178 310 356 445 620 890 1,780 2,759 5,518 11,036 13,795 27,590 55,180

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

55,180 27,590 13,795 41,386 20,693 62,080 31,040 15,520 7,760 3,880 1,940 970 485 1,456 728 364 182 91 274 137 412 206 103 310 155 466 233 700 350 175 526 263 790 395 1,186 593 1,780 890 445 1,336 668 334 167 502 251 754 377 1,132 566 283 850 425 1,276 638 319 958 479 1,438 719 2,158

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