2² × 5 × 13 × 809

Prime Factor Structure

Factorization String 2^2 × 5 × 13 × 809

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 476,280

Proper Divisor Sum 265,940

Digit Sum / Digital Root 10 (Root: 1)

Adjacent Primes #210323 ← → #210347

1 2 4 5 10 13 20 26 52 65 130 260 809 1,618 3,236 4,045 8,090 10,517 16,180 21,034 42,068 52,585 105,170 210,340

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

210,340 105,170 52,585 157,756 78,878 39,439 118,318 59,159 177,478 88,739 266,218 133,109 399,328 199,664 99,832 49,916 24,958 12,479 37,438 18,719 56,158 28,079 84,238 42,119 126,358 63,179 189,538 94,769 284,308 142,154 71,077 213,232 106,616 53,308 26,654 13,327 39,982 19,991 59,974 29,987 89,962 44,981 134,944 67,472 33,736 16,868 8,434 4,217 12,652 6,326 3,163 9,490 4,745 14,236 7,118 3,559 10,678 5,339 16,018 8,009

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