7,140,685

5 × 1428137

Starting at 7,140,685, the Collatz iteration reaches 1 after 173 steps. The first transition is 21422056; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 5 × 1428137

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 8,568,828

Proper Divisor Sum 1,428,143

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #7140677 ← → #7140689

Radix Representation

Decimal	7140685
Binary	11011001111010101001101 (23 bits)
Octal	0o33172515
Hexadecimal	0x6CF54D

Divisor Catalog (4)

1 5 1,428,137 7,140,685

Collatz Trajectory (173 steps to reach 1)

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

7,140,685 21,422,056 10,711,028 5,355,514 2,677,757 8,033,272 4,016,636 2,008,318 1,004,159 3,012,478 1,506,239 4,518,718 2,259,359 6,778,078 3,389,039 10,167,118 5,083,559 15,250,678 7,625,339 22,876,018 11,438,009 34,314,028 17,157,014 8,578,507 25,735,522 12,867,761 38,603,284 19,301,642 9,650,821 28,952,464 14,476,232 7,238,116 3,619,058 1,809,529 5,428,588 2,714,294 1,357,147 4,071,442 2,035,721 6,107,164 3,053,582 1,526,791 4,580,374 2,290,187 6,870,562 3,435,281 10,305,844 5,152,922 2,576,461 7,729,384 3,864,692 1,932,346 966,173 2,898,520 1,449,260 724,630 362,315 1,086,946 543,473 1,630,420

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