290,220

2² × 3 × 5 × 7 × 691

Prime Factor Structure

Factorization String 2^2 × 3 × 5 × 7 × 691

Distinct Prime Factors 5

Square Status No

Abundance Measure Abundant

Total Divisors 48

Divisor Sum (σ) 930,048

Proper Divisor Sum 639,828

Digit Sum / Digital Root 15 (Root: 6)

Adjacent Primes #290219 ← → #290233

1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 691 1,382 2,073 2,764 3,455 4,146 4,837 6,910 8,292 9,674 10,365 13,820 14,511 19,348 20,730 24,185 29,022 41,460 48,370 58,044 72,555 96,740 145,110 290,220

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

290,220 145,110 72,555 217,666 108,833 326,500 163,250 81,625 244,876 122,438 61,219 183,658 91,829 275,488 137,744 68,872 34,436 17,218 8,609 25,828 12,914 6,457 19,372 9,686 4,843 14,530 7,265 21,796 10,898 5,449 16,348 8,174 4,087 12,262 6,131 18,394 9,197 27,592 13,796 6,898 3,449 10,348 5,174 2,587 7,762 3,881 11,644 5,822 2,911 8,734 4,367 13,102 6,551 19,654 9,827 29,482 14,741 44,224 22,112 11,056

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