2² × 3 × 7 × 19 × 139

Prime Factor Structure

Factorization String 2^2 × 3 × 7 × 19 × 139

Distinct Prime Factors 5

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 48

Divisor Sum (σ) 627,200

Proper Divisor Sum 405,356

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #221831 ← → #221849

1 2 3 4 6 7 12 14 19 21 28 38 42 57 76 84 114 133 139 228 266 278 399 417 532 556 798 834 973 1,596 1,668 1,946 2,641 2,919 3,892 5,282 5,838 7,923 10,564 11,676 15,846 18,487 31,692 36,974 55,461 73,948 110,922 221,844

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

221,844 110,922 55,461 166,384 83,192 41,596 20,798 10,399 31,198 15,599 46,798 23,399 70,198 35,099 105,298 52,649 157,948 78,974 39,487 118,462 59,231 177,694 88,847 266,542 133,271 399,814 199,907 599,722 299,861 899,584 449,792 224,896 112,448 56,224 28,112 14,056 7,028 3,514 1,757 5,272 2,636 1,318 659 1,978 989 2,968 1,484 742 371 1,114 557 1,672 836 418 209 628 314 157 472 236

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