2 × 820187

Prime Factor Structure

Factorization String 2 × 820187

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 2,460,564

Proper Divisor Sum 820,190

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #1640333 ← → #1640393

1 2 820,187 1,640,374

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

1,640,374 820,187 2,460,562 1,230,281 3,690,844 1,845,422 922,711 2,768,134 1,384,067 4,152,202 2,076,101 6,228,304 3,114,152 1,557,076 778,538 389,269 1,167,808 583,904 291,952 145,976 72,988 36,494 18,247 54,742 27,371 82,114 41,057 123,172 61,586 30,793 92,380 46,190 23,095 69,286 34,643 103,930 51,965 155,896 77,948 38,974 19,487 58,462 29,231 87,694 43,847 131,542 65,771 197,314 98,657 295,972 147,986 73,993 221,980 110,990 55,495 166,486 83,243 249,730 124,865 374,596

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