λ
Sequence Observatory

1,128,179

13 × 86783
Deficient Odd Composite

Starting at 1,128,179, the Collatz iteration reaches 1 after 178 steps. The first transition is 3384538; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 13 × 86783
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 1,214,976
Proper Divisor Sum 86,797
Digit Sum / Digital Root 29 (Root: 2)
Adjacent Primes #1128161 ← → #1128181

Radix Representation

Decimal 1128179
Binary 100010011011011110011 (21 bits)
Octal 0o4233363
Hexadecimal 0x1136F3

Divisor Catalog (4)

1 13 86,783 1,128,179

Collatz Trajectory (178 steps to reach 1)

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

1,128,179 3,384,538 1,692,269 5,076,808 2,538,404 1,269,202 634,601 1,903,804 951,902 475,951 1,427,854 713,927 2,141,782 1,070,891 3,212,674 1,606,337 4,819,012 2,409,506 1,204,753 3,614,260 1,807,130 903,565 2,710,696 1,355,348 677,674 338,837 1,016,512 508,256 254,128 127,064 63,532 31,766 15,883 47,650 23,825 71,476 35,738 17,869 53,608 26,804 13,402 6,701 20,104 10,052 5,026 2,513 7,540 3,770 1,885 5,656 2,828 1,414 707 2,122 1,061 3,184 1,592 796 398 199

More profiles

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