λ
Sequence Observatory

4,987,006

2 × 19 × 263 × 499
Deficient Even Composite

Starting at 4,987,006, the Collatz iteration reaches 1 after 175 steps. The first transition is 2493503; the starting value is even with 16 positive divisors.

Prime Factor Structure

Factorization String 2 × 19 × 263 × 499
Distinct Prime Factors 4
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 16
Divisor Sum (σ) 7,920,000
Proper Divisor Sum 2,932,994
Digit Sum / Digital Root 34 (Root: 7)
Adjacent Primes #4986997 ← → #4987007

Radix Representation

Decimal 4987006
Binary 10011000001100001111110 (23 bits)
Octal 0o23014176
Hexadecimal 0x4C187E

Divisor Catalog (16)

1 2 19 38 263 499 526 998 4,997 9,481 9,994 18,962 131,237 262,474 2,493,503 4,987,006

Collatz Trajectory (175 steps to reach 1)

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

4,987,006 2,493,503 7,480,510 3,740,255 11,220,766 5,610,383 16,831,150 8,415,575 25,246,726 12,623,363 37,870,090 18,935,045 56,805,136 28,402,568 14,201,284 7,100,642 3,550,321 10,650,964 5,325,482 2,662,741 7,988,224 3,994,112 1,997,056 998,528 499,264 249,632 124,816 62,408 31,204 15,602 7,801 23,404 11,702 5,851 17,554 8,777 26,332 13,166 6,583 19,750 9,875 29,626 14,813 44,440 22,220 11,110 5,555 16,666 8,333 25,000 12,500 6,250 3,125 9,376 4,688 2,344 1,172 586 293 880

More profiles

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