2⁴ × 43 × 991

Prime Factor Structure

Factorization String 2^4 × 43 × 991

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 20

Divisor Sum (σ) 1,353,088

Proper Divisor Sum 671,280

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #681787 ← → #681809

1 2 4 8 16 43 86 172 344 688 991 1,982 3,964 7,928 15,856 42,613 85,226 170,452 340,904 681,808

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

681,808 340,904 170,452 85,226 42,613 127,840 63,920 31,960 15,980 7,990 3,995 11,986 5,993 17,980 8,990 4,495 13,486 6,743 20,230 10,115 30,346 15,173 45,520 22,760 11,380 5,690 2,845 8,536 4,268 2,134 1,067 3,202 1,601 4,804 2,402 1,201 3,604 1,802 901 2,704 1,352 676 338 169 508 254 127 382 191 574 287 862 431 1,294 647 1,942 971 2,914 1,457 4,372

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