λ
Sequence Observatory

5,545,420

22 × 5 × 179 × 1549
Abundant Even Composite

Starting at 5,545,420, the Collatz iteration reaches 1 after 201 steps. The first transition is 2772710; the starting value is even with 24 positive divisors.

Prime Factor Structure

Factorization String 2^2 × 5 × 179 × 1549
Distinct Prime Factors 4
Square Status No
Abundance Measure Abundant

Analytical Properties

Total Divisors 24
Divisor Sum (σ) 11,718,000
Proper Divisor Sum 6,172,580
Digit Sum / Digital Root 25 (Root: 7)
Adjacent Primes #5545411 ← → #5545433

Radix Representation

Decimal 5545420
Binary 10101001001110111001100 (23 bits)
Octal 0o25116714
Hexadecimal 0x549DCC

Divisor Catalog (24)

1 2 4 5 10 20 179 358 716 895 1,549 1,790 3,098 3,580 6,196 7,745 15,490 30,980 277,271 554,542 1,109,084 1,386,355 2,772,710 5,545,420

Collatz Trajectory (201 steps to reach 1)

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

5,545,420 2,772,710 1,386,355 4,159,066 2,079,533 6,238,600 3,119,300 1,559,650 779,825 2,339,476 1,169,738 584,869 1,754,608 877,304 438,652 219,326 109,663 328,990 164,495 493,486 246,743 740,230 370,115 1,110,346 555,173 1,665,520 832,760 416,380 208,190 104,095 312,286 156,143 468,430 234,215 702,646 351,323 1,053,970 526,985 1,580,956 790,478 395,239 1,185,718 592,859 1,778,578 889,289 2,667,868 1,333,934 666,967 2,000,902 1,000,451 3,001,354 1,500,677 4,502,032 2,251,016 1,125,508 562,754 281,377 844,132 422,066 211,033

More profiles

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