1,621,988

2² × 405497

Prime Factor Structure

Factorization String 2^2 × 405497

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Total Divisors 6

Divisor Sum (σ) 2,838,486

Proper Divisor Sum 1,216,498

Digit Sum / Digital Root 35 (Root: 8)

Adjacent Primes #1621979 ← → #1621993

1 2 4 405,497 810,994 1,621,988

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

1,621,988 810,994 405,497 1,216,492 608,246 304,123 912,370 456,185 1,368,556 684,278 342,139 1,026,418 513,209 1,539,628 769,814 384,907 1,154,722 577,361 1,732,084 866,042 433,021 1,299,064 649,532 324,766 162,383 487,150 243,575 730,726 365,363 1,096,090 548,045 1,644,136 822,068 411,034 205,517 616,552 308,276 154,138 77,069 231,208 115,604 57,802 28,901 86,704 43,352 21,676 10,838 5,419 16,258 8,129 24,388 12,194 6,097 18,292 9,146 4,573 13,720 6,860 3,430 1,715

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