2² × 7² × 1993

Prime Factor Structure

Factorization String 2^2 × 7^2 × 1993

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 18

Divisor Sum (σ) 795,606

Proper Divisor Sum 404,978

Digit Sum / Digital Root 28 (Root: 1)

Adjacent Primes #390581 ← → #390647

1 2 4 7 14 28 49 98 196 1,993 3,986 7,972 13,951 27,902 55,804 97,657 195,314 390,628

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

390,628 195,314 97,657 292,972 146,486 73,243 219,730 109,865 329,596 164,798 82,399 247,198 123,599 370,798 185,399 556,198 278,099 834,298 417,149 1,251,448 625,724 312,862 156,431 469,294 234,647 703,942 351,971 1,055,914 527,957 1,583,872 791,936 395,968 197,984 98,992 49,496 24,748 12,374 6,187 18,562 9,281 27,844 13,922 6,961 20,884 10,442 5,221 15,664 7,832 3,916 1,958 979 2,938 1,469 4,408 2,204 1,102 551 1,654 827 2,482

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