λ
Sequence Observatory

8,081,137

17 × 19 × 127 × 197
Deficient Odd Composite

Starting at 8,081,137, the Collatz iteration reaches 1 after 111 steps. The first transition is 24243412; the starting value is odd with 16 positive divisors.

Prime Factor Structure

Factorization String 17 × 19 × 127 × 197
Distinct Prime Factors 4
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 16
Divisor Sum (σ) 9,123,840
Proper Divisor Sum 1,042,703
Digit Sum / Digital Root 28 (Root: 1)
Adjacent Primes #8081123 ← → #8081153

Radix Representation

Decimal 8081137
Binary 11110110100111011110001 (23 bits)
Octal 0o36647361
Hexadecimal 0x7B4EF1

Divisor Catalog (16)

1 17 19 127 197 323 2,159 2,413 3,349 3,743 25,019 41,021 63,631 425,323 475,361 8,081,137

Collatz Trajectory (111 steps to reach 1)

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

8,081,137 24,243,412 12,121,706 6,060,853 18,182,560 9,091,280 4,545,640 2,272,820 1,136,410 568,205 1,704,616 852,308 426,154 213,077 639,232 319,616 159,808 79,904 39,952 19,976 9,988 4,994 2,497 7,492 3,746 1,873 5,620 2,810 1,405 4,216 2,108 1,054 527 1,582 791 2,374 1,187 3,562 1,781 5,344 2,672 1,336 668 334 167 502 251 754 377 1,132 566 283 850 425 1,276 638 319 958 479 1,438

More profiles

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