7³ × 43 × 1429

Prime Factor Structure

Factorization String 7^3 × 43 × 1429

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 25,168,000

Proper Divisor Sum 4,091,679

Digit Sum / Digital Root 22 (Root: 4)

Adjacent Primes #21076309 ← → #21076343

1 7 43 49 301 343 1,429 2,107 10,003 14,749 61,447 70,021 430,129 490,147 3,010,903 21,076,321

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

21,076,321 63,228,964 31,614,482 15,807,241 47,421,724 23,710,862 11,855,431 35,566,294 17,783,147 53,349,442 26,674,721 80,024,164 40,012,082 20,006,041 60,018,124 30,009,062 15,004,531 45,013,594 22,506,797 67,520,392 33,760,196 16,880,098 8,440,049 25,320,148 12,660,074 6,330,037 18,990,112 9,495,056 4,747,528 2,373,764 1,186,882 593,441 1,780,324 890,162 445,081 1,335,244 667,622 333,811 1,001,434 500,717 1,502,152 751,076 375,538 187,769 563,308 281,654 140,827 422,482 211,241 633,724 316,862 158,431 475,294 237,647 712,942 356,471 1,069,414 534,707 1,604,122 802,061

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