13 × 53 × 373

Prime Factor Structure

Factorization String 13 × 53 × 373

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 282,744

Proper Divisor Sum 25,747

Digit Sum / Digital Root 38 (Root: 2)

Adjacent Primes #256981 ← → #257003

1 13 53 373 689 4,849 19,769 256,997

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

256,997 770,992 385,496 192,748 96,374 48,187 144,562 72,281 216,844 108,422 54,211 162,634 81,317 243,952 121,976 60,988 30,494 15,247 45,742 22,871 68,614 34,307 102,922 51,461 154,384 77,192 38,596 19,298 9,649 28,948 14,474 7,237 21,712 10,856 5,428 2,714 1,357 4,072 2,036 1,018 509 1,528 764 382 191 574 287 862 431 1,294 647 1,942 971 2,914 1,457 4,372 2,186 1,093 3,280 1,640

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