λ
Sequence Observatory

1,880,980

22 × 5 × 94049
Abundant Even Composite

Starting at 1,880,980, the Collatz iteration reaches 1 after 202 steps. The first transition is 940490; the starting value is even with 12 positive divisors.

Prime Factor Structure

Factorization String 2^2 × 5 × 94049
Distinct Prime Factors 3
Square Status No
Abundance Measure Abundant

Analytical Properties

Total Divisors 12
Divisor Sum (σ) 3,950,100
Proper Divisor Sum 2,069,120
Digit Sum / Digital Root 34 (Root: 7)
Adjacent Primes #1880971 ← → #1880993

Radix Representation

Decimal 1880980
Binary 111001011001110010100 (21 bits)
Octal 0o7131624
Hexadecimal 0x1CB394

Divisor Catalog (12)

1 2 4 5 10 20 94,049 188,098 376,196 470,245 940,490 1,880,980

Collatz Trajectory (202 steps to reach 1)

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

1,880,980 940,490 470,245 1,410,736 705,368 352,684 176,342 88,171 264,514 132,257 396,772 198,386 99,193 297,580 148,790 74,395 223,186 111,593 334,780 167,390 83,695 251,086 125,543 376,630 188,315 564,946 282,473 847,420 423,710 211,855 635,566 317,783 953,350 476,675 1,430,026 715,013 2,145,040 1,072,520 536,260 268,130 134,065 402,196 201,098 100,549 301,648 150,824 75,412 37,706 18,853 56,560 28,280 14,140 7,070 3,535 10,606 5,303 15,910 7,955 23,866 11,933

More profiles

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