654,989

79 × 8291

654,989 factors as 79 × 8291. Its 4 positive divisors give a proper-divisor sum of 8,371, so this integer is deficient. The Collatz stopping time is 185 steps.

Prime Factor Structure

Factorization String 79 × 8291

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 663,360

Proper Divisor Sum 8,371

Digit Sum / Digital Root 41 (Root: 5)

Adjacent Primes #654967 ← → #654991

Radix Representation

Decimal	654989
Binary	10011111111010001101 (20 bits)
Octal	0o2377215
Hexadecimal	0x9FE8D

Divisor Catalog (4)

1 79 8,291 654,989

Collatz Trajectory (185 steps to reach 1)

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

654,989 1,964,968 982,484 491,242 245,621 736,864 368,432 184,216 92,108 46,054 23,027 69,082 34,541 103,624 51,812 25,906 12,953 38,860 19,430 9,715 29,146 14,573 43,720 21,860 10,930 5,465 16,396 8,198 4,099 12,298 6,149 18,448 9,224 4,612 2,306 1,153 3,460 1,730 865 2,596 1,298 649 1,948 974 487 1,462 731 2,194 1,097 3,292 1,646 823 2,470 1,235 3,706 1,853 5,560 2,780 1,390 695

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