13 × 31 × 821

Prime Factor Structure

Factorization String 13 × 31 × 821

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 368,256

Proper Divisor Sum 37,393

Digit Sum / Digital Root 23 (Root: 5)

Adjacent Primes #330859 ← → #330877

1 13 31 403 821 10,673 25,451 330,863

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

330,863 992,590 496,295 1,488,886 744,443 2,233,330 1,116,665 3,349,996 1,674,998 837,499 2,512,498 1,256,249 3,768,748 1,884,374 942,187 2,826,562 1,413,281 4,239,844 2,119,922 1,059,961 3,179,884 1,589,942 794,971 2,384,914 1,192,457 3,577,372 1,788,686 894,343 2,683,030 1,341,515 4,024,546 2,012,273 6,036,820 3,018,410 1,509,205 4,527,616 2,263,808 1,131,904 565,952 282,976 141,488 70,744 35,372 17,686 8,843 26,530 13,265 39,796 19,898 9,949 29,848 14,924 7,462 3,731 11,194 5,597 16,792 8,396 4,198 2,099

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