3² × 17 × 197 × 709

Prime Factor Structure

Factorization String 3^2 × 17 × 197 × 709

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 32,895,720

Proper Divisor Sum 11,525,751

Digit Sum / Digital Root 45 (Root: 9)

Adjacent Primes #21369949 ← → #21369989

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

21,369,969 64,109,908 32,054,954 16,027,477 48,082,432 24,041,216 12,020,608 6,010,304 3,005,152 1,502,576 751,288 375,644 187,822 93,911 281,734 140,867 422,602 211,301 633,904 316,952 158,476 79,238 39,619 118,858 59,429 178,288 89,144 44,572 22,286 11,143 33,430 16,715 50,146 25,073 75,220 37,610 18,805 56,416 28,208 14,104 7,052 3,526 1,763 5,290 2,645 7,936 3,968 1,984 992 496 248 124 62 31 94 47 142 71 214 107

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