72,009,652

2² × 11 × 13 × 31² × 131

Prime Factor Structure

Factorization String 2^2 × 11 × 13 × 31^2 × 131

Distinct Prime Factors 5

Square Status No

Abundance Measure Abundant

Total Divisors 72

Divisor Sum (σ) 154,145,376

Proper Divisor Sum 82,135,724

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #72009647 ← → #72009661

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

72,009,652 36,004,826 18,002,413 54,007,240 27,003,620 13,501,810 6,750,905 20,252,716 10,126,358 5,063,179 15,189,538 7,594,769 22,784,308 11,392,154 5,696,077 17,088,232 8,544,116 4,272,058 2,136,029 6,408,088 3,204,044 1,602,022 801,011 2,403,034 1,201,517 3,604,552 1,802,276 901,138 450,569 1,351,708 675,854 337,927 1,013,782 506,891 1,520,674 760,337 2,281,012 1,140,506 570,253 1,710,760 855,380 427,690 213,845 641,536 320,768 160,384 80,192 40,096 20,048 10,024 5,012 2,506 1,253 3,760 1,880 940 470 235 706 353

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