8,663,630

2 × 5 × 631 × 1373

Starting at 8,663,630, the Collatz iteration reaches 1 after 274 steps. The first transition is 4331815; the starting value is even with 16 positive divisors.

Prime Factor Structure

Factorization String 2 × 5 × 631 × 1373

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 15,630,624

Proper Divisor Sum 6,966,994

Digit Sum / Digital Root 32 (Root: 5)

Adjacent Primes #8663621 ← → #8663653

Radix Representation

Decimal	8663630
Binary	100001000011001001001110 (24 bits)
Octal	0o41031116
Hexadecimal	0x84324E

Divisor Catalog (16)

1 2 5 10 631 1,262 1,373 2,746 3,155 6,310 6,865 13,730 866,363 1,732,726 4,331,815 8,663,630

Collatz Trajectory (274 steps to reach 1)

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

8,663,630 4,331,815 12,995,446 6,497,723 19,493,170 9,746,585 29,239,756 14,619,878 7,309,939 21,929,818 10,964,909 32,894,728 16,447,364 8,223,682 4,111,841 12,335,524 6,167,762 3,083,881 9,251,644 4,625,822 2,312,911 6,938,734 3,469,367 10,408,102 5,204,051 15,612,154 7,806,077 23,418,232 11,709,116 5,854,558 2,927,279 8,781,838 4,390,919 13,172,758 6,586,379 19,759,138 9,879,569 29,638,708 14,819,354 7,409,677 22,229,032 11,114,516 5,557,258 2,778,629 8,335,888 4,167,944 2,083,972 1,041,986 520,993 1,562,980 781,490 390,745 1,172,236 586,118 293,059 879,178 439,589 1,318,768 659,384 329,692

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