720,745

5 × 47 × 3067

720,745 factors as 5 × 47 × 3067. Its 8 positive divisors give a proper-divisor sum of 162,839, so this integer is deficient. The Collatz stopping time is 66 steps.

Prime Factor Structure

Factorization String 5 × 47 × 3067

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 883,584

Proper Divisor Sum 162,839

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #720743 ← → #720763

Radix Representation

Decimal	720745
Binary	10101111111101101001 (20 bits)
Octal	0o2577551
Hexadecimal	0xAFF69

Divisor Catalog (8)

1 5 47 235 3,067 15,335 144,149 720,745

Collatz Trajectory (66 steps to reach 1)

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

720,745 2,162,236 1,081,118 540,559 1,621,678 810,839 2,432,518 1,216,259 3,648,778 1,824,389 5,473,168 2,736,584 1,368,292 684,146 342,073 1,026,220 513,110 256,555 769,666 384,833 1,154,500 577,250 288,625 865,876 432,938 216,469 649,408 324,704 162,352 81,176 40,588 20,294 10,147 30,442 15,221 45,664 22,832 11,416 5,708 2,854 1,427 4,282 2,141 6,424 3,212 1,606 803 2,410 1,205 3,616 1,808 904 452 226 113 340 170 85 256 128

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