4,285,480

2³ × 5 × 107137

Starting at 4,285,480, the Collatz iteration reaches 1 after 149 steps. The first transition is 2142740; the starting value is even with 16 positive divisors.

Prime Factor Structure

Factorization String 2^3 × 5 × 107137

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 9,642,420

Proper Divisor Sum 5,356,940

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #4285453 ← → #4285481

Radix Representation

Decimal	4285480
Binary	10000010110010000101000 (23 bits)
Octal	0o20262050
Hexadecimal	0x416428

Divisor Catalog (16)

1 2 4 5 8 10 20 40 107,137 214,274 428,548 535,685 857,096 1,071,370 2,142,740 4,285,480

Collatz Trajectory (149 steps to reach 1)

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

4,285,480 2,142,740 1,071,370 535,685 1,607,056 803,528 401,764 200,882 100,441 301,324 150,662 75,331 225,994 112,997 338,992 169,496 84,748 42,374 21,187 63,562 31,781 95,344 47,672 23,836 11,918 5,959 17,878 8,939 26,818 13,409 40,228 20,114 10,057 30,172 15,086 7,543 22,630 11,315 33,946 16,973 50,920 25,460 12,730 6,365 19,096 9,548 4,774 2,387 7,162 3,581 10,744 5,372 2,686 1,343 4,030 2,015 6,046 3,023 9,070 4,535

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