2² × 3 × 7² × 661

Prime Factor Structure

Factorization String 2^2 × 3 × 7^2 × 661

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 36

Divisor Sum (σ) 1,056,552

Proper Divisor Sum 667,884

Digit Sum / Digital Root 39 (Root: 3)

Adjacent Primes #388657 ← → #388673

1 2 3 4 6 7 12 14 21 28 42 49 84 98 147 196 294 588 661 1,322 1,983 2,644 3,966 4,627 7,932 9,254 13,881 18,508 27,762 32,389 55,524 64,778 97,167 129,556 194,334 388,668

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

388,668 194,334 97,167 291,502 145,751 437,254 218,627 655,882 327,941 983,824 491,912 245,956 122,978 61,489 184,468 92,234 46,117 138,352 69,176 34,588 17,294 8,647 25,942 12,971 38,914 19,457 58,372 29,186 14,593 43,780 21,890 10,945 32,836 16,418 8,209 24,628 12,314 6,157 18,472 9,236 4,618 2,309 6,928 3,464 1,732 866 433 1,300 650 325 976 488 244 122 61 184 92 46 23 70

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