λ
Sequence Observatory

319,417

7 × 45631
Deficient Odd Composite

Starting at 319,417, the Collatz iteration reaches 1 after 78 steps. The first transition is 958252; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 7 × 45631
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 365,056
Proper Divisor Sum 45,639
Digit Sum / Digital Root 25 (Root: 7)
Adjacent Primes #319411 ← → #319427

Radix Representation

Decimal 319417
Binary 1001101111110111001 (19 bits)
Octal 0o1157671
Hexadecimal 0x4DFB9

Divisor Catalog (4)

1 7 45,631 319,417

Collatz Trajectory (78 steps to reach 1)

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

319,417 958,252 479,126 239,563 718,690 359,345 1,078,036 539,018 269,509 808,528 404,264 202,132 101,066 50,533 151,600 75,800 37,900 18,950 9,475 28,426 14,213 42,640 21,320 10,660 5,330 2,665 7,996 3,998 1,999 5,998 2,999 8,998 4,499 13,498 6,749 20,248 10,124 5,062 2,531 7,594 3,797 11,392 5,696 2,848 1,424 712 356 178 89 268 134 67 202 101 304 152 76 38 19 58

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