6,387,555

3 × 5 × 425837

Starting at 6,387,555, the Collatz iteration reaches 1 after 134 steps. The first transition is 19162666; the starting value is odd with 8 positive divisors.

Prime Factor Structure

Factorization String 3 × 5 × 425837

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 10,220,112

Proper Divisor Sum 3,832,557

Digit Sum / Digital Root 39 (Root: 3)

Adjacent Primes #6387541 ← → #6387559

Radix Representation

Decimal	6387555
Binary	11000010111011101100011 (23 bits)
Octal	0o30273543
Hexadecimal	0x617763

Divisor Catalog (8)

1 3 5 15 425,837 1,277,511 2,129,185 6,387,555

Collatz Trajectory (134 steps to reach 1)

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

6,387,555 19,162,666 9,581,333 28,744,000 14,372,000 7,186,000 3,593,000 1,796,500 898,250 449,125 1,347,376 673,688 336,844 168,422 84,211 252,634 126,317 378,952 189,476 94,738 47,369 142,108 71,054 35,527 106,582 53,291 159,874 79,937 239,812 119,906 59,953 179,860 89,930 44,965 134,896 67,448 33,724 16,862 8,431 25,294 12,647 37,942 18,971 56,914 28,457 85,372 42,686 21,343 64,030 32,015 96,046 48,023 144,070 72,035 216,106 108,053 324,160 162,080 81,040 40,520

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