2,013,485

5 × 402697

Starting at 2,013,485, the Collatz iteration reaches 1 after 109 steps. The first transition is 6040456; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 5 × 402697

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 2,416,188

Proper Divisor Sum 402,703

Digit Sum / Digital Root 23 (Root: 5)

Adjacent Primes #2013457 ← → #2013491

Radix Representation

Decimal	2013485
Binary	111101011100100101101 (21 bits)
Octal	0o7534455
Hexadecimal	0x1EB92D

Divisor Catalog (4)

1 5 402,697 2,013,485

Collatz Trajectory (109 steps to reach 1)

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

2,013,485 6,040,456 3,020,228 1,510,114 755,057 2,265,172 1,132,586 566,293 1,698,880 849,440 424,720 212,360 106,180 53,090 26,545 79,636 39,818 19,909 59,728 29,864 14,932 7,466 3,733 11,200 5,600 2,800 1,400 700 350 175 526 263 790 395 1,186 593 1,780 890 445 1,336 668 334 167 502 251 754 377 1,132 566 283 850 425 1,276 638 319 958 479 1,438 719 2,158

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