4,400,391

3 × 1466797

Starting at 4,400,391, the Collatz iteration reaches 1 after 193 steps. The first transition is 13201174; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 3 × 1466797

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 5,867,192

Proper Divisor Sum 1,466,801

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #4400387 ← → #4400393

Radix Representation

Decimal	4400391
Binary	10000110010010100000111 (23 bits)
Octal	0o20622407
Hexadecimal	0x432507

Divisor Catalog (4)

1 3 1,466,797 4,400,391

Collatz Trajectory (193 steps to reach 1)

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

4,400,391 13,201,174 6,600,587 19,801,762 9,900,881 29,702,644 14,851,322 7,425,661 22,276,984 11,138,492 5,569,246 2,784,623 8,353,870 4,176,935 12,530,806 6,265,403 18,796,210 9,398,105 28,194,316 14,097,158 7,048,579 21,145,738 10,572,869 31,718,608 15,859,304 7,929,652 3,964,826 1,982,413 5,947,240 2,973,620 1,486,810 743,405 2,230,216 1,115,108 557,554 278,777 836,332 418,166 209,083 627,250 313,625 940,876 470,438 235,219 705,658 352,829 1,058,488 529,244 264,622 132,311 396,934 198,467 595,402 297,701 893,104 446,552 223,276 111,638 55,819 167,458

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