2² × 5 × 13 × 29 × 37

Prime Factor Structure

Factorization String 2^2 × 5 × 13 × 29 × 37

Distinct Prime Factors 5

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 48

Divisor Sum (σ) 670,320

Proper Divisor Sum 391,340

Digit Sum / Digital Root 34 (Root: 7)

Adjacent Primes #278947 ← → #278981

1 2 4 5 10 13 20 26 29 37 52 58 65 74 116 130 145 148 185 260 290 370 377 481 580 740 754 962 1,073 1,508 1,885 1,924 2,146 2,405 3,770 4,292 4,810 5,365 7,540 9,620 10,730 13,949 21,460 27,898 55,796 69,745 139,490 278,980

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

278,980 139,490 69,745 209,236 104,618 52,309 156,928 78,464 39,232 19,616 9,808 4,904 2,452 1,226 613 1,840 920 460 230 115 346 173 520 260 130 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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