4,487,140

2² × 5 × 7 × 32051

Starting at 4,487,140, the Collatz iteration reaches 1 after 74 steps. The first transition is 2243570; the starting value is even with 24 positive divisors.

Prime Factor Structure

Factorization String 2^2 × 5 × 7 × 32051

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 10,769,472

Proper Divisor Sum 6,282,332

Digit Sum / Digital Root 28 (Root: 1)

Adjacent Primes #4487111 ← → #4487159

Radix Representation

Decimal	4487140
Binary	10001000111011111100100 (23 bits)
Octal	0o21073744
Hexadecimal	0x4477E4

Divisor Catalog (24)

1 2 4 5 7 10 14 20 28 35 70 140 32,051 64,102 128,204 160,255 224,357 320,510 448,714 641,020 897,428 1,121,785 2,243,570 4,487,140

Collatz Trajectory (74 steps to reach 1)

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

4,487,140 2,243,570 1,121,785 3,365,356 1,682,678 841,339 2,524,018 1,262,009 3,786,028 1,893,014 946,507 2,839,522 1,419,761 4,259,284 2,129,642 1,064,821 3,194,464 1,597,232 798,616 399,308 199,654 99,827 299,482 149,741 449,224 224,612 112,306 56,153 168,460 84,230 42,115 126,346 63,173 189,520 94,760 47,380 23,690 11,845 35,536 17,768 8,884 4,442 2,221 6,664 3,332 1,666 833 2,500 1,250 625 1,876 938 469 1,408 704 352 176 88 44 22

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