2² × 5 × 13 × 653

Prime Factor Structure

Factorization String 2^2 × 5 × 13 × 653

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 384,552

Proper Divisor Sum 214,772

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #169777 ← → #169783

1 2 4 5 10 13 20 26 52 65 130 260 653 1,306 2,612 3,265 6,530 8,489 13,060 16,978 33,956 42,445 84,890 169,780

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

169,780 84,890 42,445 127,336 63,668 31,834 15,917 47,752 23,876 11,938 5,969 17,908 8,954 4,477 13,432 6,716 3,358 1,679 5,038 2,519 7,558 3,779 11,338 5,669 17,008 8,504 4,252 2,126 1,063 3,190 1,595 4,786 2,393 7,180 3,590 1,795 5,386 2,693 8,080 4,040 2,020 1,010 505 1,516 758 379 1,138 569 1,708 854 427 1,282 641 1,924 962 481 1,444 722 361 1,084

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