5 × 11 × 61 × 643

Prime Factor Structure

Factorization String 5 × 11 × 61 × 643

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 2,874,816

Proper Divisor Sum 717,551

Digit Sum / Digital Root 28 (Root: 1)

Adjacent Primes #2157257 ← → #2157269

1 5 11 55 61 305 643 671 3,215 3,355 7,073 35,365 39,223 196,115 431,453 2,157,265

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

2,157,265 6,471,796 3,235,898 1,617,949 4,853,848 2,426,924 1,213,462 606,731 1,820,194 910,097 2,730,292 1,365,146 682,573 2,047,720 1,023,860 511,930 255,965 767,896 383,948 191,974 95,987 287,962 143,981 431,944 215,972 107,986 53,993 161,980 80,990 40,495 121,486 60,743 182,230 91,115 273,346 136,673 410,020 205,010 102,505 307,516 153,758 76,879 230,638 115,319 345,958 172,979 518,938 259,469 778,408 389,204 194,602 97,301 291,904 145,952 72,976 36,488 18,244 9,122 4,561 13,684

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