521,876

2² × 130469

Prime Factor Structure

Factorization String 2^2 × 130469

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Total Divisors 6

Divisor Sum (σ) 913,290

Proper Divisor Sum 391,414

Digit Sum / Digital Root 29 (Root: 2)

Adjacent Primes #521869 ← → #521879

1 2 4 130,469 260,938 521,876

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

521,876 260,938 130,469 391,408 195,704 97,852 48,926 24,463 73,390 36,695 110,086 55,043 165,130 82,565 247,696 123,848 61,924 30,962 15,481 46,444 23,222 11,611 34,834 17,417 52,252 26,126 13,063 39,190 19,595 58,786 29,393 88,180 44,090 22,045 66,136 33,068 16,534 8,267 24,802 12,401 37,204 18,602 9,301 27,904 13,952 6,976 3,488 1,744 872 436 218 109 328 164 82 41 124 62 31 94

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