λ
Sequence Observatory

308,935

5 × 11 × 41 × 137
Deficient Odd Composite

Starting at 308,935, the Collatz iteration reaches 1 after 171 steps. The first transition is 926806; the starting value is odd with 16 positive divisors.

Prime Factor Structure

Factorization String 5 × 11 × 41 × 137
Distinct Prime Factors 4
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 16
Divisor Sum (σ) 417,312
Proper Divisor Sum 108,377
Digit Sum / Digital Root 28 (Root: 1)
Adjacent Primes #308933 ← → #308939

Radix Representation

Decimal 308935
Binary 1001011011011000111 (19 bits)
Octal 0o1133307
Hexadecimal 0x4B6C7

Divisor Catalog (16)

1 5 11 41 55 137 205 451 685 1,507 2,255 5,617 7,535 28,085 61,787 308,935

Collatz Trajectory (171 steps to reach 1)

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

308,935 926,806 463,403 1,390,210 695,105 2,085,316 1,042,658 521,329 1,563,988 781,994 390,997 1,172,992 586,496 293,248 146,624 73,312 36,656 18,328 9,164 4,582 2,291 6,874 3,437 10,312 5,156 2,578 1,289 3,868 1,934 967 2,902 1,451 4,354 2,177 6,532 3,266 1,633 4,900 2,450 1,225 3,676 1,838 919 2,758 1,379 4,138 2,069 6,208 3,104 1,552 776 388 194 97 292 146 73 220 110 55

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