21393481

Prime Factor Structure

Factorization String 21393481

Distinct Prime Factors 1

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 2

Divisor Sum (σ) 21,393,482

Proper Divisor Sum 1

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #21393467 ← → #21393521

1 21,393,481

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

21,393,481 64,180,444 32,090,222 16,045,111 48,135,334 24,067,667 72,203,002 36,101,501 108,304,504 54,152,252 27,076,126 13,538,063 40,614,190 20,307,095 60,921,286 30,460,643 91,381,930 45,690,965 137,072,896 68,536,448 34,268,224 17,134,112 8,567,056 4,283,528 2,141,764 1,070,882 535,441 1,606,324 803,162 401,581 1,204,744 602,372 301,186 150,593 451,780 225,890 112,945 338,836 169,418 84,709 254,128 127,064 63,532 31,766 15,883 47,650 23,825 71,476 35,738 17,869 53,608 26,804 13,402 6,701 20,104 10,052 5,026 2,513 7,540 3,770

Other feeder batches with open delivery windows. Each feeder keeps its own target batch.