1,718,781

3 × 572927

Starting at 1,718,781, the Collatz iteration reaches 1 after 127 steps. The first transition is 5156344; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 3 × 572927

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 2,291,712

Proper Divisor Sum 572,931

Digit Sum / Digital Root 33 (Root: 6)

Adjacent Primes #1718771 ← → #1718789

Radix Representation

Decimal	1718781
Binary	110100011100111111101 (21 bits)
Octal	0o6434775
Hexadecimal	0x1A39FD

Divisor Catalog (4)

1 3 572,927 1,718,781

Collatz Trajectory (127 steps to reach 1)

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

1,718,781 5,156,344 2,578,172 1,289,086 644,543 1,933,630 966,815 2,900,446 1,450,223 4,350,670 2,175,335 6,526,006 3,263,003 9,789,010 4,894,505 14,683,516 7,341,758 3,670,879 11,012,638 5,506,319 16,518,958 8,259,479 24,778,438 12,389,219 37,167,658 18,583,829 55,751,488 27,875,744 13,937,872 6,968,936 3,484,468 1,742,234 871,117 2,613,352 1,306,676 653,338 326,669 980,008 490,004 245,002 122,501 367,504 183,752 91,876 45,938 22,969 68,908 34,454 17,227 51,682 25,841 77,524 38,762 19,381 58,144 29,072 14,536 7,268 3,634 1,817

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