2² × 7 × 17 × 821

Prime Factor Structure

Factorization String 2^2 × 7 × 17 × 821

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 828,576

Proper Divisor Sum 437,780

Digit Sum / Digital Root 34 (Root: 7)

Adjacent Primes #390791 ← → #390809

1 2 4 7 14 17 28 34 68 119 238 476 821 1,642 3,284 5,747 11,494 13,957 22,988 27,914 55,828 97,699 195,398 390,796

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

390,796 195,398 97,699 293,098 146,549 439,648 219,824 109,912 54,956 27,478 13,739 41,218 20,609 61,828 30,914 15,457 46,372 23,186 11,593 34,780 17,390 8,695 26,086 13,043 39,130 19,565 58,696 29,348 14,674 7,337 22,012 11,006 5,503 16,510 8,255 24,766 12,383 37,150 18,575 55,726 27,863 83,590 41,795 125,386 62,693 188,080 94,040 47,020 23,510 11,755 35,266 17,633 52,900 26,450 13,225 39,676 19,838 9,919 29,758 14,879

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