8,387,857

8387857

Starting at 8,387,857, the Collatz iteration reaches 1 after 75 steps. The first transition is 25163572; the starting value is odd with 2 positive divisors.

Prime Factor Structure

Factorization String 8387857

Distinct Prime Factors 1

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 2

Divisor Sum (σ) 8,387,858

Proper Divisor Sum 1

Digit Sum / Digital Root 46 (Root: 1)

Adjacent Primes #8387839 ← → #8387861

Radix Representation

Decimal	8387857
Binary	11111111111110100010001 (23 bits)
Octal	0o37776421
Hexadecimal	0x7FFD11

Divisor Catalog (2)

1 8,387,857

Collatz Trajectory (75 steps to reach 1)

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

8,387,857 25,163,572 12,581,786 6,290,893 18,872,680 9,436,340 4,718,170 2,359,085 7,077,256 3,538,628 1,769,314 884,657 2,653,972 1,326,986 663,493 1,990,480 995,240 497,620 248,810 124,405 373,216 186,608 93,304 46,652 23,326 11,663 34,990 17,495 52,486 26,243 78,730 39,365 118,096 59,048 29,524 14,762 7,381 22,144 11,072 5,536 2,768 1,384 692 346 173 520 260 130 65 196 98 49 148 74 37 112 56 28 14 7

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