43,940

2² × 5 × 13³

Prime Factor Structure

Factorization String 2^2 × 5 × 13^3

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Total Divisors 24

Divisor Sum (σ) 99,960

Proper Divisor Sum 56,020

Digit Sum / Digital Root 20 (Root: 2)

Adjacent Primes #43933 ← → #43943

1 2 4 5 10 13 20 26 52 65 130 169 260 338 676 845 1,690 2,197 3,380 4,394 8,788 10,985 21,970 43,940

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

43,940 21,970 10,985 32,956 16,478 8,239 24,718 12,359 37,078 18,539 55,618 27,809 83,428 41,714 20,857 62,572 31,286 15,643 46,930 23,465 70,396 35,198 17,599 52,798 26,399 79,198 39,599 118,798 59,399 178,198 89,099 267,298 133,649 400,948 200,474 100,237 300,712 150,356 75,178 37,589 112,768 56,384 28,192 14,096 7,048 3,524 1,762 881 2,644 1,322 661 1,984 992 496 248 124 62 31 94 47

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