5 × 13² × 971

Prime Factor Structure

Factorization String 5 × 13^2 × 971

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 1,067,256

Proper Divisor Sum 246,761

Digit Sum / Digital Root 28 (Root: 1)

Adjacent Primes #820489 ← → #820537

1 5 13 65 169 845 971 4,855 12,623 63,115 164,099 820,495

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

820,495 2,461,486 1,230,743 3,692,230 1,846,115 5,538,346 2,769,173 8,307,520 4,153,760 2,076,880 1,038,440 519,220 259,610 129,805 389,416 194,708 97,354 48,677 146,032 73,016 36,508 18,254 9,127 27,382 13,691 41,074 20,537 61,612 30,806 15,403 46,210 23,105 69,316 34,658 17,329 51,988 25,994 12,997 38,992 19,496 9,748 4,874 2,437 7,312 3,656 1,828 914 457 1,372 686 343 1,030 515 1,546 773 2,320 1,160 580 290 145

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