λ
Sequence Observatory

4,971,705

3 × 5 × 331447
Deficient Odd Composite

Starting at 4,971,705, the Collatz iteration reaches 1 after 144 steps. The first transition is 14915116; the starting value is odd with 8 positive divisors.

Prime Factor Structure

Factorization String 3 × 5 × 331447
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 7,954,752
Proper Divisor Sum 2,983,047
Digit Sum / Digital Root 33 (Root: 6)
Adjacent Primes #4971691 ← → #4971709

Radix Representation

Decimal 4971705
Binary 10010111101110010111001 (23 bits)
Octal 0o22756271
Hexadecimal 0x4BDCB9

Divisor Catalog (8)

1 3 5 15 331,447 994,341 1,657,235 4,971,705

Collatz Trajectory (144 steps to reach 1)

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

4,971,705 14,915,116 7,457,558 3,728,779 11,186,338 5,593,169 16,779,508 8,389,754 4,194,877 12,584,632 6,292,316 3,146,158 1,573,079 4,719,238 2,359,619 7,078,858 3,539,429 10,618,288 5,309,144 2,654,572 1,327,286 663,643 1,990,930 995,465 2,986,396 1,493,198 746,599 2,239,798 1,119,899 3,359,698 1,679,849 5,039,548 2,519,774 1,259,887 3,779,662 1,889,831 5,669,494 2,834,747 8,504,242 4,252,121 12,756,364 6,378,182 3,189,091 9,567,274 4,783,637 14,350,912 7,175,456 3,587,728 1,793,864 896,932 448,466 224,233 672,700 336,350 168,175 504,526 252,263 756,790 378,395 1,135,186

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