3 × 7 × 17 × 401

Prime Factor Structure

Factorization String 3 × 7 × 17 × 401

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 231,552

Proper Divisor Sum 88,395

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #143141 ← → #143159

1 3 7 17 21 51 119 357 401 1,203 2,807 6,817 8,421 20,451 47,719 143,157

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

143,157 429,472 214,736 107,368 53,684 26,842 13,421 40,264 20,132 10,066 5,033 15,100 7,550 3,775 11,326 5,663 16,990 8,495 25,486 12,743 38,230 19,115 57,346 28,673 86,020 43,010 21,505 64,516 32,258 16,129 48,388 24,194 12,097 36,292 18,146 9,073 27,220 13,610 6,805 20,416 10,208 5,104 2,552 1,276 638 319 958 479 1,438 719 2,158 1,079 3,238 1,619 4,858 2,429 7,288 3,644 1,822 911

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