λ
Sigma Notebook

1,379,655

32 × 5 × 23 × 31 × 43
Deficient Odd Composite

1,379,655 is odd and not a perfect square. Its factorization is 3^2 × 5 × 23 × 31 × 43 and its 48 divisors sum to 2,635,776.

Prime Factor Structure

Factorization String 3^2 × 5 × 23 × 31 × 43
Distinct Prime Factors 5
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 48
Divisor Sum (σ) 2,635,776
Proper Divisor Sum 1,256,121
Digit Sum / Digital Root 36 (Root: 9)
Adjacent Primes #1379641 ← → #1379657

Radix Representation

Decimal 1379655
Binary 101010000110101000111 (21 bits)
Octal 0o5206507
Hexadecimal 0x150D47

Divisor Catalog (48)

1 3 5 9 15 23 31 43 45 69 93 115 129 155 207 215 279 345 387 465 645 713 989 1,035 1,333 1,395 1,935 2,139 2,967 3,565 3,999 4,945 6,417 6,665 8,901 10,695 11,997 14,835 19,995 30,659 32,085 44,505 59,985 91,977 153,295 275,931 459,885 1,379,655

Collatz Trajectory (93 steps to reach 1)

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

1,379,655 4,138,966 2,069,483 6,208,450 3,104,225 9,312,676 4,656,338 2,328,169 6,984,508 3,492,254 1,746,127 5,238,382 2,619,191 7,857,574 3,928,787 11,786,362 5,893,181 17,679,544 8,839,772 4,419,886 2,209,943 6,629,830 3,314,915 9,944,746 4,972,373 14,917,120 7,458,560 3,729,280 1,864,640 932,320 466,160 233,080 116,540 58,270 29,135 87,406 43,703 131,110 65,555 196,666 98,333 295,000 147,500 73,750 36,875 110,626 55,313 165,940 82,970 41,485 124,456 62,228 31,114 15,557 46,672 23,336 11,668 5,834 2,917 8,752

More profiles

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