418,405

5 × 13 × 41 × 157

Prime Factor Structure

Factorization String 5 × 13 × 41 × 157

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Total Divisors 16

Divisor Sum (σ) 557,424

Proper Divisor Sum 139,019

Digit Sum / Digital Root 22 (Root: 4)

Adjacent Primes #418391 ← → #418423

1 5 13 41 65 157 205 533 785 2,041 2,665 6,437 10,205 32,185 83,681 418,405

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

418,405 1,255,216 627,608 313,804 156,902 78,451 235,354 117,677 353,032 176,516 88,258 44,129 132,388 66,194 33,097 99,292 49,646 24,823 74,470 37,235 111,706 55,853 167,560 83,780 41,890 20,945 62,836 31,418 15,709 47,128 23,564 11,782 5,891 17,674 8,837 26,512 13,256 6,628 3,314 1,657 4,972 2,486 1,243 3,730 1,865 5,596 2,798 1,399 4,198 2,099 6,298 3,149 9,448 4,724 2,362 1,181 3,544 1,772 886 443

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