2² × 5 × 7 × 1571

Prime Factor Structure

Factorization String 2^2 × 5 × 7 × 1571

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 528,192

Proper Divisor Sum 308,252

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #219937 ← → #219941

1 2 4 5 7 10 14 20 28 35 70 140 1,571 3,142 6,284 7,855 10,997 15,710 21,994 31,420 43,988 54,985 109,970 219,940

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

219,940 109,970 54,985 164,956 82,478 41,239 123,718 61,859 185,578 92,789 278,368 139,184 69,592 34,796 17,398 8,699 26,098 13,049 39,148 19,574 9,787 29,362 14,681 44,044 22,022 11,011 33,034 16,517 49,552 24,776 12,388 6,194 3,097 9,292 4,646 2,323 6,970 3,485 10,456 5,228 2,614 1,307 3,922 1,961 5,884 2,942 1,471 4,414 2,207 6,622 3,311 9,934 4,967 14,902 7,451 22,354 11,177 33,532 16,766 8,383

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