6,436,145

5 × 311 × 4139

Starting at 6,436,145, the Collatz iteration reaches 1 after 240 steps. The first transition is 19308436; the starting value is odd with 8 positive divisors.

Prime Factor Structure

Factorization String 5 × 311 × 4139

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 7,750,080

Proper Divisor Sum 1,313,935

Digit Sum / Digital Root 29 (Root: 2)

Adjacent Primes #6436121 ← → #6436147

Radix Representation

Decimal	6436145
Binary	11000100011010100110001 (23 bits)
Octal	0o30432461
Hexadecimal	0x623531

Divisor Catalog (8)

1 5 311 1,555 4,139 20,695 1,287,229 6,436,145

Collatz Trajectory (240 steps to reach 1)

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

6,436,145 19,308,436 9,654,218 4,827,109 14,481,328 7,240,664 3,620,332 1,810,166 905,083 2,715,250 1,357,625 4,072,876 2,036,438 1,018,219 3,054,658 1,527,329 4,581,988 2,290,994 1,145,497 3,436,492 1,718,246 859,123 2,577,370 1,288,685 3,866,056 1,933,028 966,514 483,257 1,449,772 724,886 362,443 1,087,330 543,665 1,630,996 815,498 407,749 1,223,248 611,624 305,812 152,906 76,453 229,360 114,680 57,340 28,670 14,335 43,006 21,503 64,510 32,255 96,766 48,383 145,150 72,575 217,726 108,863 326,590 163,295 489,886 244,943

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