5,217,805

5 × 151 × 6911

Starting at 5,217,805, the Collatz iteration reaches 1 after 206 steps. The first transition is 15653416; the starting value is odd with 8 positive divisors.

Prime Factor Structure

Factorization String 5 × 151 × 6911

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 6,303,744

Proper Divisor Sum 1,085,939

Digit Sum / Digital Root 28 (Root: 1)

Adjacent Primes #5217787 ← → #5217809

Radix Representation

Decimal	5217805
Binary	10011111001111000001101 (23 bits)
Octal	0o23717015
Hexadecimal	0x4F9E0D

Divisor Catalog (8)

1 5 151 755 6,911 34,555 1,043,561 5,217,805

Collatz Trajectory (206 steps to reach 1)

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

5,217,805 15,653,416 7,826,708 3,913,354 1,956,677 5,870,032 2,935,016 1,467,508 733,754 366,877 1,100,632 550,316 275,158 137,579 412,738 206,369 619,108 309,554 154,777 464,332 232,166 116,083 348,250 174,125 522,376 261,188 130,594 65,297 195,892 97,946 48,973 146,920 73,460 36,730 18,365 55,096 27,548 13,774 6,887 20,662 10,331 30,994 15,497 46,492 23,246 11,623 34,870 17,435 52,306 26,153 78,460 39,230 19,615 58,846 29,423 88,270 44,135 132,406 66,203 198,610

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