810,509

7³ × 17 × 139

Prime Factor Structure

Factorization String 7^3 × 17 × 139

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Total Divisors 16

Divisor Sum (σ) 1,008,000

Proper Divisor Sum 197,491

Digit Sum / Digital Root 23 (Root: 5)

Adjacent Primes #810503 ← → #810517

1 7 17 49 119 139 343 833 973 2,363 5,831 6,811 16,541 47,677 115,787 810,509

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

810,509 2,431,528 1,215,764 607,882 303,941 911,824 455,912 227,956 113,978 56,989 170,968 85,484 42,742 21,371 64,114 32,057 96,172 48,086 24,043 72,130 36,065 108,196 54,098 27,049 81,148 40,574 20,287 60,862 30,431 91,294 45,647 136,942 68,471 205,414 102,707 308,122 154,061 462,184 231,092 115,546 57,773 173,320 86,660 43,330 21,665 64,996 32,498 16,249 48,748 24,374 12,187 36,562 18,281 54,844 27,422 13,711 41,134 20,567 61,702 30,851

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