13 × 53 × 971

Prime Factor Structure

Factorization String 13 × 53 × 971

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 734,832

Proper Divisor Sum 65,813

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #668999 ← → #669023

1 13 53 689 971 12,623 51,463 669,019

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

669,019 2,007,058 1,003,529 3,010,588 1,505,294 752,647 2,257,942 1,128,971 3,386,914 1,693,457 5,080,372 2,540,186 1,270,093 3,810,280 1,905,140 952,570 476,285 1,428,856 714,428 357,214 178,607 535,822 267,911 803,734 401,867 1,205,602 602,801 1,808,404 904,202 452,101 1,356,304 678,152 339,076 169,538 84,769 254,308 127,154 63,577 190,732 95,366 47,683 143,050 71,525 214,576 107,288 53,644 26,822 13,411 40,234 20,117 60,352 30,176 15,088 7,544 3,772 1,886 943 2,830 1,415 4,246

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