2 × 7 × 37 × 101 × 409

Prime Factor Structure

Factorization String 2 × 7 × 37 × 101 × 409

Distinct Prime Factors 5

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 32

Divisor Sum (σ) 38,139,840

Proper Divisor Sum 16,741,778

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #21398033 ← → #21398063

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

21,398,062 10,699,031 32,097,094 16,048,547 48,145,642 24,072,821 72,218,464 36,109,232 18,054,616 9,027,308 4,513,654 2,256,827 6,770,482 3,385,241 10,155,724 5,077,862 2,538,931 7,616,794 3,808,397 11,425,192 5,712,596 2,856,298 1,428,149 4,284,448 2,142,224 1,071,112 535,556 267,778 133,889 401,668 200,834 100,417 301,252 150,626 75,313 225,940 112,970 56,485 169,456 84,728 42,364 21,182 10,591 31,774 15,887 47,662 23,831 71,494 35,747 107,242 53,621 160,864 80,432 40,216 20,108 10,054 5,027 15,082 7,541 22,624

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