3² × 31 × 491

Prime Factor Structure

Factorization String 3^2 × 31 × 491

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 204,672

Proper Divisor Sum 67,683

Digit Sum / Digital Root 36 (Root: 9)

Adjacent Primes #136987 ← → #136991

1 3 9 31 93 279 491 1,473 4,419 15,221 45,663 136,989

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

136,989 410,968 205,484 102,742 51,371 154,114 77,057 231,172 115,586 57,793 173,380 86,690 43,345 130,036 65,018 32,509 97,528 48,764 24,382 12,191 36,574 18,287 54,862 27,431 82,294 41,147 123,442 61,721 185,164 92,582 46,291 138,874 69,437 208,312 104,156 52,078 26,039 78,118 39,059 117,178 58,589 175,768 87,884 43,942 21,971 65,914 32,957 98,872 49,436 24,718 12,359 37,078 18,539 55,618 27,809 83,428 41,714 20,857 62,572 31,286

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