1,254,617

7 × 13 × 17 × 811

Starting at 1,254,617, the Collatz iteration reaches 1 after 173 steps. The first transition is 3763852; the starting value is odd with 16 positive divisors.

Prime Factor Structure

Factorization String 7 × 13 × 17 × 811

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 1,636,992

Proper Divisor Sum 382,375

Digit Sum / Digital Root 26 (Root: 8)

Adjacent Primes #1254613 ← → #1254619

Radix Representation

Decimal	1254617
Binary	100110010010011011001 (21 bits)
Octal	0o4622331
Hexadecimal	0x1324D9

Divisor Catalog (16)

1 7 13 17 91 119 221 811 1,547 5,677 10,543 13,787 73,801 96,509 179,231 1,254,617

Collatz Trajectory (173 steps to reach 1)

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

1,254,617 3,763,852 1,881,926 940,963 2,822,890 1,411,445 4,234,336 2,117,168 1,058,584 529,292 264,646 132,323 396,970 198,485 595,456 297,728 148,864 74,432 37,216 18,608 9,304 4,652 2,326 1,163 3,490 1,745 5,236 2,618 1,309 3,928 1,964 982 491 1,474 737 2,212 1,106 553 1,660 830 415 1,246 623 1,870 935 2,806 1,403 4,210 2,105 6,316 3,158 1,579 4,738 2,369 7,108 3,554 1,777 5,332 2,666 1,333

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