λ
Sequence Observatory

3,218,927

71 × 45337
Deficient Odd Composite

Starting at 3,218,927, the Collatz iteration reaches 1 after 208 steps. The first transition is 9656782; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 71 × 45337
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 3,264,336
Proper Divisor Sum 45,409
Digit Sum / Digital Root 32 (Root: 5)
Adjacent Primes #3218911 ← → #3218939

Radix Representation

Decimal 3218927
Binary 1100010001110111101111 (22 bits)
Octal 0o14216757
Hexadecimal 0x311DEF

Divisor Catalog (4)

1 71 45,337 3,218,927

Collatz Trajectory (208 steps to reach 1)

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

3,218,927 9,656,782 4,828,391 14,485,174 7,242,587 21,727,762 10,863,881 32,591,644 16,295,822 8,147,911 24,443,734 12,221,867 36,665,602 18,332,801 54,998,404 27,499,202 13,749,601 41,248,804 20,624,402 10,312,201 30,936,604 15,468,302 7,734,151 23,202,454 11,601,227 34,803,682 17,401,841 52,205,524 26,102,762 13,051,381 39,154,144 19,577,072 9,788,536 4,894,268 2,447,134 1,223,567 3,670,702 1,835,351 5,506,054 2,753,027 8,259,082 4,129,541 12,388,624 6,194,312 3,097,156 1,548,578 774,289 2,322,868 1,161,434 580,717 1,742,152 871,076 435,538 217,769 653,308 326,654 163,327 489,982 244,991 734,974

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