21528071

Prime Factor Structure

Factorization String 21528071

Distinct Prime Factors 1

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 2

Divisor Sum (σ) 21,528,072

Proper Divisor Sum 1

Digit Sum / Digital Root 26 (Root: 8)

Adjacent Primes #21528037 ← → #21528077

1 21,528,071

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

21,528,071 64,584,214 32,292,107 96,876,322 48,438,161 145,314,484 72,657,242 36,328,621 108,985,864 54,492,932 27,246,466 13,623,233 40,869,700 20,434,850 10,217,425 30,652,276 15,326,138 7,663,069 22,989,208 11,494,604 5,747,302 2,873,651 8,620,954 4,310,477 12,931,432 6,465,716 3,232,858 1,616,429 4,849,288 2,424,644 1,212,322 606,161 1,818,484 909,242 454,621 1,363,864 681,932 340,966 170,483 511,450 255,725 767,176 383,588 191,794 95,897 287,692 143,846 71,923 215,770 107,885 323,656 161,828 80,914 40,457 121,372 60,686 30,343 91,030 45,515 136,546

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