1,642,619

11 × 59 × 2531

Starting at 1,642,619, the Collatz iteration reaches 1 after 194 steps. The first transition is 4927858; the starting value is odd with 8 positive divisors.

Prime Factor Structure

Factorization String 11 × 59 × 2531

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 1,823,040

Proper Divisor Sum 180,421

Digit Sum / Digital Root 29 (Root: 2)

Adjacent Primes #1642601 ← → #1642631

Radix Representation

Decimal	1642619
Binary	110010001000001111011 (21 bits)
Octal	0o6210173
Hexadecimal	0x19107B

Divisor Catalog (8)

1 11 59 649 2,531 27,841 149,329 1,642,619

Collatz Trajectory (194 steps to reach 1)

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

1,642,619 4,927,858 2,463,929 7,391,788 3,695,894 1,847,947 5,543,842 2,771,921 8,315,764 4,157,882 2,078,941 6,236,824 3,118,412 1,559,206 779,603 2,338,810 1,169,405 3,508,216 1,754,108 877,054 438,527 1,315,582 657,791 1,973,374 986,687 2,960,062 1,480,031 4,440,094 2,220,047 6,660,142 3,330,071 9,990,214 4,995,107 14,985,322 7,492,661 22,477,984 11,238,992 5,619,496 2,809,748 1,404,874 702,437 2,107,312 1,053,656 526,828 263,414 131,707 395,122 197,561 592,684 296,342 148,171 444,514 222,257 666,772 333,386 166,693 500,080 250,040 125,020 62,510

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