13 × 53 × 821

Prime Factor Structure

Factorization String 13 × 53 × 821

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 621,432

Proper Divisor Sum 55,763

Digit Sum / Digital Root 37 (Root: 1)

Adjacent Primes #565667 ← → #565723

1 13 53 689 821 10,673 43,513 565,669

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

565,669 1,697,008 848,504 424,252 212,126 106,063 318,190 159,095 477,286 238,643 715,930 357,965 1,073,896 536,948 268,474 134,237 402,712 201,356 100,678 50,339 151,018 75,509 226,528 113,264 56,632 28,316 14,158 7,079 21,238 10,619 31,858 15,929 47,788 23,894 11,947 35,842 17,921 53,764 26,882 13,441 40,324 20,162 10,081 30,244 15,122 7,561 22,684 11,342 5,671 17,014 8,507 25,522 12,761 38,284 19,142 9,571 28,714 14,357 43,072 21,536

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