λ
Sequence Observatory

7,998,871

23 × 457 × 761
Deficient Odd Composite

Starting at 7,998,871, the Collatz iteration reaches 1 after 186 steps. The first transition is 23996614; the starting value is odd with 8 positive divisors.

Prime Factor Structure

Factorization String 23 × 457 × 761
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 8,375,904
Proper Divisor Sum 377,033
Digit Sum / Digital Root 49 (Root: 4)
Adjacent Primes #7998863 ← → #7998937

Radix Representation

Decimal 7998871
Binary 11110100000110110010111 (23 bits)
Octal 0o36406627
Hexadecimal 0x7A0D97

Divisor Catalog (8)

1 23 457 761 10,511 17,503 347,777 7,998,871

Collatz Trajectory (186 steps to reach 1)

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

7,998,871 23,996,614 11,998,307 35,994,922 17,997,461 53,992,384 26,996,192 13,498,096 6,749,048 3,374,524 1,687,262 843,631 2,530,894 1,265,447 3,796,342 1,898,171 5,694,514 2,847,257 8,541,772 4,270,886 2,135,443 6,406,330 3,203,165 9,609,496 4,804,748 2,402,374 1,201,187 3,603,562 1,801,781 5,405,344 2,702,672 1,351,336 675,668 337,834 168,917 506,752 253,376 126,688 63,344 31,672 15,836 7,918 3,959 11,878 5,939 17,818 8,909 26,728 13,364 6,682 3,341 10,024 5,012 2,506 1,253 3,760 1,880 940 470 235

More profiles

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