1,211,454

2 × 3² × 17 × 37 × 107

Starting at 1,211,454, the Collatz iteration reaches 1 after 310 steps. The first transition is 605727; the starting value is even with 48 positive divisors.

Prime Factor Structure

Factorization String 2 × 3^2 × 17 × 37 × 107

Distinct Prime Factors 5

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 48

Divisor Sum (σ) 2,881,008

Proper Divisor Sum 1,669,554

Digit Sum / Digital Root 18 (Root: 9)

Adjacent Primes #1211443 ← → #1211477

Radix Representation

Decimal	1211454
Binary	100100111110000111110 (21 bits)
Octal	0o4476076
Hexadecimal	0x127C3E

Divisor Catalog (48)

1 2 3 6 9 17 18 34 37 51 74 102 107 111 153 214 222 306 321 333 629 642 666 963 1,258 1,819 1,887 1,926 3,638 3,774 3,959 5,457 5,661 7,918 10,914 11,322 11,877 16,371 23,754 32,742 35,631 67,303 71,262 134,606 201,909 403,818 605,727 1,211,454

Collatz Trajectory (310 steps to reach 1)

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

1,211,454 605,727 1,817,182 908,591 2,725,774 1,362,887 4,088,662 2,044,331 6,132,994 3,066,497 9,199,492 4,599,746 2,299,873 6,899,620 3,449,810 1,724,905 5,174,716 2,587,358 1,293,679 3,881,038 1,940,519 5,821,558 2,910,779 8,732,338 4,366,169 13,098,508 6,549,254 3,274,627 9,823,882 4,911,941 14,735,824 7,367,912 3,683,956 1,841,978 920,989 2,762,968 1,381,484 690,742 345,371 1,036,114 518,057 1,554,172 777,086 388,543 1,165,630 582,815 1,748,446 874,223 2,622,670 1,311,335 3,934,006 1,967,003 5,901,010 2,950,505 8,851,516 4,425,758 2,212,879 6,638,638 3,319,319 9,957,958

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