2² × 5 × 53 × 131

Prime Factor Structure

Factorization String 2^2 × 5 × 53 × 131

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 299,376

Proper Divisor Sum 160,516

Digit Sum / Digital Root 26 (Root: 8)

Adjacent Primes #138841 ← → #138863

1 2 4 5 10 20 53 106 131 212 262 265 524 530 655 1,060 1,310 2,620 6,943 13,886 27,772 34,715 69,430 138,860

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

138,860 69,430 34,715 104,146 52,073 156,220 78,110 39,055 117,166 58,583 175,750 87,875 263,626 131,813 395,440 197,720 98,860 49,430 24,715 74,146 37,073 111,220 55,610 27,805 83,416 41,708 20,854 10,427 31,282 15,641 46,924 23,462 11,731 35,194 17,597 52,792 26,396 13,198 6,599 19,798 9,899 29,698 14,849 44,548 22,274 11,137 33,412 16,706 8,353 25,060 12,530 6,265 18,796 9,398 4,699 14,098 7,049 21,148 10,574 5,287

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