2,640,146

2 × 31 × 97 × 439

Prime Factor Structure

Factorization String 2 × 31 × 97 × 439

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Total Divisors 16

Divisor Sum (σ) 4,139,520

Proper Divisor Sum 1,499,374

Digit Sum / Digital Root 23 (Root: 5)

Adjacent Primes #2640139 ← → #2640163

1 2 31 62 97 194 439 878 3,007 6,014 13,609 27,218 42,583 85,166 1,320,073 2,640,146

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

2,640,146 1,320,073 3,960,220 1,980,110 990,055 2,970,166 1,485,083 4,455,250 2,227,625 6,682,876 3,341,438 1,670,719 5,012,158 2,506,079 7,518,238 3,759,119 11,277,358 5,638,679 16,916,038 8,458,019 25,374,058 12,687,029 38,061,088 19,030,544 9,515,272 4,757,636 2,378,818 1,189,409 3,568,228 1,784,114 892,057 2,676,172 1,338,086 669,043 2,007,130 1,003,565 3,010,696 1,505,348 752,674 376,337 1,129,012 564,506 282,253 846,760 423,380 211,690 105,845 317,536 158,768 79,384 39,692 19,846 9,923 29,770 14,885 44,656 22,328 11,164 5,582 2,791

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