2² × 5 × 139

Prime Factor Structure

Factorization String 2^2 × 5 × 139

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 5,880

Proper Divisor Sum 3,100

Digit Sum / Digital Root 17 (Root: 8)

Adjacent Primes #2777 ← → #2789

1 2 4 5 10 20 139 278 556 695 1,390 2,780

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

2,780 1,390 695 2,086 1,043 3,130 1,565 4,696 2,348 1,174 587 1,762 881 2,644 1,322 661 1,984 992 496 248 124 62 31 94 47 142 71 214 107 322 161 484 242 121 364 182 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

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