3² × 13 × 1721

Prime Factor Structure

Factorization String 3^2 × 13 × 1721

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 313,404

Proper Divisor Sum 112,047

Digit Sum / Digital Root 18 (Root: 9)

Adjacent Primes #201337 ← → #201359

1 3 9 13 39 117 1,721 5,163 15,489 22,373 67,119 201,357

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

201,357 604,072 302,036 151,018 75,509 226,528 113,264 56,632 28,316 14,158 7,079 21,238 10,619 31,858 15,929 47,788 23,894 11,947 35,842 17,921 53,764 26,882 13,441 40,324 20,162 10,081 30,244 15,122 7,561 22,684 11,342 5,671 17,014 8,507 25,522 12,761 38,284 19,142 9,571 28,714 14,357 43,072 21,536 10,768 5,384 2,692 1,346 673 2,020 1,010 505 1,516 758 379 1,138 569 1,708 854 427 1,282

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