656,240

2⁴ × 5 × 13 × 631

Prime Factor Structure

Factorization String 2^4 × 5 × 13 × 631

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Total Divisors 40

Divisor Sum (σ) 1,645,728

Proper Divisor Sum 989,488

Digit Sum / Digital Root 23 (Root: 5)

Adjacent Primes #656237 ← → #656263

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

656,240 328,120 164,060 82,030 41,015 123,046 61,523 184,570 92,285 276,856 138,428 69,214 34,607 103,822 51,911 155,734 77,867 233,602 116,801 350,404 175,202 87,601 262,804 131,402 65,701 197,104 98,552 49,276 24,638 12,319 36,958 18,479 55,438 27,719 83,158 41,579 124,738 62,369 187,108 93,554 46,777 140,332 70,166 35,083 105,250 52,625 157,876 78,938 39,469 118,408 59,204 29,602 14,801 44,404 22,202 11,101 33,304 16,652 8,326 4,163

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