210,639

3 × 11 × 13 × 491

Prime Factor Structure

Factorization String 3 × 11 × 13 × 491

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Total Divisors 16

Divisor Sum (σ) 330,624

Proper Divisor Sum 119,985

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #210631 ← → #210643

1 3 11 13 33 39 143 429 491 1,473 5,401 6,383 16,203 19,149 70,213 210,639

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

210,639 631,918 315,959 947,878 473,939 1,421,818 710,909 2,132,728 1,066,364 533,182 266,591 799,774 399,887 1,199,662 599,831 1,799,494 899,747 2,699,242 1,349,621 4,048,864 2,024,432 1,012,216 506,108 253,054 126,527 379,582 189,791 569,374 284,687 854,062 427,031 1,281,094 640,547 1,921,642 960,821 2,882,464 1,441,232 720,616 360,308 180,154 90,077 270,232 135,116 67,558 33,779 101,338 50,669 152,008 76,004 38,002 19,001 57,004 28,502 14,251 42,754 21,377 64,132 32,066 16,033 48,100

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