210,860

2² × 5 × 13 × 811

Prime Factor Structure

Factorization String 2^2 × 5 × 13 × 811

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Total Divisors 24

Divisor Sum (σ) 477,456

Proper Divisor Sum 266,596

Digit Sum / Digital Root 17 (Root: 8)

Adjacent Primes #210857 ← → #210869

1 2 4 5 10 13 20 26 52 65 130 260 811 1,622 3,244 4,055 8,110 10,543 16,220 21,086 42,172 52,715 105,430 210,860

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

210,860 105,430 52,715 158,146 79,073 237,220 118,610 59,305 177,916 88,958 44,479 133,438 66,719 200,158 100,079 300,238 150,119 450,358 225,179 675,538 337,769 1,013,308 506,654 253,327 759,982 379,991 1,139,974 569,987 1,709,962 854,981 2,564,944 1,282,472 641,236 320,618 160,309 480,928 240,464 120,232 60,116 30,058 15,029 45,088 22,544 11,272 5,636 2,818 1,409 4,228 2,114 1,057 3,172 1,586 793 2,380 1,190 595 1,786 893 2,680 1,340

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