3 × 7 × 137 × 191

Prime Factor Structure

Factorization String 3 × 7 × 137 × 191

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 847,872

Proper Divisor Sum 298,365

Digit Sum / Digital Root 30 (Root: 3)

Adjacent Primes #549503 ← → #549509

1 3 7 21 137 191 411 573 959 1,337 2,877 4,011 26,167 78,501 183,169 549,507

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

549,507 1,648,522 824,261 2,472,784 1,236,392 618,196 309,098 154,549 463,648 231,824 115,912 57,956 28,978 14,489 43,468 21,734 10,867 32,602 16,301 48,904 24,452 12,226 6,113 18,340 9,170 4,585 13,756 6,878 3,439 10,318 5,159 15,478 7,739 23,218 11,609 34,828 17,414 8,707 26,122 13,061 39,184 19,592 9,796 4,898 2,449 7,348 3,674 1,837 5,512 2,756 1,378 689 2,068 1,034 517 1,552 776 388 194 97

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