13 × 37 × 53 × 61

Prime Factor Structure

Factorization String 13 × 37 × 53 × 61

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 1,781,136

Proper Divisor Sum 226,063

Digit Sum / Digital Root 26 (Root: 8)

Adjacent Primes #1555061 ← → #1555079

1 13 37 53 61 481 689 793 1,961 2,257 3,233 25,493 29,341 42,029 119,621 1,555,073

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

1,555,073 4,665,220 2,332,610 1,166,305 3,498,916 1,749,458 874,729 2,624,188 1,312,094 656,047 1,968,142 984,071 2,952,214 1,476,107 4,428,322 2,214,161 6,642,484 3,321,242 1,660,621 4,981,864 2,490,932 1,245,466 622,733 1,868,200 934,100 467,050 233,525 700,576 350,288 175,144 87,572 43,786 21,893 65,680 32,840 16,420 8,210 4,105 12,316 6,158 3,079 9,238 4,619 13,858 6,929 20,788 10,394 5,197 15,592 7,796 3,898 1,949 5,848 2,924 1,462 731 2,194 1,097 3,292 1,646

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