2 × 13 × 157 × 5153

Prime Factor Structure

Factorization String 2 × 13 × 157 × 5153

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 34,201,944

Proper Divisor Sum 13,167,398

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #21034543 ← → #21034561

1 2 13 26 157 314 2,041 4,082 5,153 10,306 66,989 133,978 809,021 1,618,042 10,517,273 21,034,546

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

21,034,546 10,517,273 31,551,820 15,775,910 7,887,955 23,663,866 11,831,933 35,495,800 17,747,900 8,873,950 4,436,975 13,310,926 6,655,463 19,966,390 9,983,195 29,949,586 14,974,793 44,924,380 22,462,190 11,231,095 33,693,286 16,846,643 50,539,930 25,269,965 75,809,896 37,904,948 18,952,474 9,476,237 28,428,712 14,214,356 7,107,178 3,553,589 10,660,768 5,330,384 2,665,192 1,332,596 666,298 333,149 999,448 499,724 249,862 124,931 374,794 187,397 562,192 281,096 140,548 70,274 35,137 105,412 52,706 26,353 79,060 39,530 19,765 59,296 29,648 14,824 7,412 3,706

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