720,409

17 × 31 × 1367

Prime Factor Structure

Factorization String 17 × 31 × 1367

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Total Divisors 8

Divisor Sum (σ) 787,968

Proper Divisor Sum 67,559

Digit Sum / Digital Root 22 (Root: 4)

Adjacent Primes #720407 ← → #720413

1 17 31 527 1,367 23,239 42,377 720,409

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

720,409 2,161,228 1,080,614 540,307 1,620,922 810,461 2,431,384 1,215,692 607,846 303,923 911,770 455,885 1,367,656 683,828 341,914 170,957 512,872 256,436 128,218 64,109 192,328 96,164 48,082 24,041 72,124 36,062 18,031 54,094 27,047 81,142 40,571 121,714 60,857 182,572 91,286 45,643 136,930 68,465 205,396 102,698 51,349 154,048 77,024 38,512 19,256 9,628 4,814 2,407 7,222 3,611 10,834 5,417 16,252 8,126 4,063 12,190 6,095 18,286 9,143 27,430

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