13,201,220

2² × 5 × 660061

Prime Factor Structure

Factorization String 2^2 × 5 × 660061

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Total Divisors 12

Divisor Sum (σ) 27,722,604

Proper Divisor Sum 14,521,384

Digit Sum / Digital Root 11 (Root: 2)

Adjacent Primes #13201217 ← → #13201249

1 2 4 5 10 20 660,061 1,320,122 2,640,244 3,300,305 6,600,610 13,201,220

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

13,201,220 6,600,610 3,300,305 9,900,916 4,950,458 2,475,229 7,425,688 3,712,844 1,856,422 928,211 2,784,634 1,392,317 4,176,952 2,088,476 1,044,238 522,119 1,566,358 783,179 2,349,538 1,174,769 3,524,308 1,762,154 881,077 2,643,232 1,321,616 660,808 330,404 165,202 82,601 247,804 123,902 61,951 185,854 92,927 278,782 139,391 418,174 209,087 627,262 313,631 940,894 470,447 1,411,342 705,671 2,117,014 1,058,507 3,175,522 1,587,761 4,763,284 2,381,642 1,190,821 3,572,464 1,786,232 893,116 446,558 223,279 669,838 334,919 1,004,758 502,379

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