λ
Sigma Notebook

1,129,981

31 × 36451
Deficient Odd Composite

1,129,981 is odd and not a perfect square. Its factorization is 31 × 36451 and its 4 divisors sum to 1,166,464.

Prime Factor Structure

Factorization String 31 × 36451
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 1,166,464
Proper Divisor Sum 36,483
Digit Sum / Digital Root 31 (Root: 4)
Adjacent Primes #1129963 ← → #1129991

Radix Representation

Decimal 1129981
Binary 100010011110111111101 (21 bits)
Octal 0o4236775
Hexadecimal 0x113DFD

Divisor Catalog (4)

1 31 36,451 1,129,981

Collatz Trajectory (253 steps to reach 1)

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

1,129,981 3,389,944 1,694,972 847,486 423,743 1,271,230 635,615 1,906,846 953,423 2,860,270 1,430,135 4,290,406 2,145,203 6,435,610 3,217,805 9,653,416 4,826,708 2,413,354 1,206,677 3,620,032 1,810,016 905,008 452,504 226,252 113,126 56,563 169,690 84,845 254,536 127,268 63,634 31,817 95,452 47,726 23,863 71,590 35,795 107,386 53,693 161,080 80,540 40,270 20,135 60,406 30,203 90,610 45,305 135,916 67,958 33,979 101,938 50,969 152,908 76,454 38,227 114,682 57,341 172,024 86,012 43,006

More profiles

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