665,071

11 × 103 × 587

Starting at 665,071, the Collatz iteration reaches 1 after 79 steps. The first transition is 1995214; the starting value is odd with 8 positive divisors.

Prime Factor Structure

Factorization String 11 × 103 × 587

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 733,824

Proper Divisor Sum 68,753

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #665069 ← → #665089

Radix Representation

Decimal	665071
Binary	10100010010111101111 (20 bits)
Octal	0o2422757
Hexadecimal	0xA25EF

Divisor Catalog (8)

1 11 103 587 1,133 6,457 60,461 665,071

Collatz Trajectory (79 steps to reach 1)

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

665,071 1,995,214 997,607 2,992,822 1,496,411 4,489,234 2,244,617 6,733,852 3,366,926 1,683,463 5,050,390 2,525,195 7,575,586 3,787,793 11,363,380 5,681,690 2,840,845 8,522,536 4,261,268 2,130,634 1,065,317 3,195,952 1,597,976 798,988 399,494 199,747 599,242 299,621 898,864 449,432 224,716 112,358 56,179 168,538 84,269 252,808 126,404 63,202 31,601 94,804 47,402 23,701 71,104 35,552 17,776 8,888 4,444 2,222 1,111 3,334 1,667 5,002 2,501 7,504 3,752 1,876 938 469 1,408 704

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