7 × 13 × 31 × 151

Prime Factor Structure

Factorization String 7 × 13 × 31 × 151

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 544,768

Proper Divisor Sum 118,797

Digit Sum / Digital Root 28 (Root: 1)

Adjacent Primes #425959 ← → #425977

1 7 13 31 91 151 217 403 1,057 1,963 2,821 4,681 13,741 32,767 60,853 425,971

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

425,971 1,277,914 638,957 1,916,872 958,436 479,218 239,609 718,828 359,414 179,707 539,122 269,561 808,684 404,342 202,171 606,514 303,257 909,772 454,886 227,443 682,330 341,165 1,023,496 511,748 255,874 127,937 383,812 191,906 95,953 287,860 143,930 71,965 215,896 107,948 53,974 26,987 80,962 40,481 121,444 60,722 30,361 91,084 45,542 22,771 68,314 34,157 102,472 51,236 25,618 12,809 38,428 19,214 9,607 28,822 14,411 43,234 21,617 64,852 32,426 16,213

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