λ
Sequence Observatory

1,439,231

19 × 211 × 359
Deficient Odd Composite

Starting at 1,439,231, the Collatz iteration reaches 1 after 181 steps. The first transition is 4317694; the starting value is odd with 8 positive divisors.

Prime Factor Structure

Factorization String 19 × 211 × 359
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 1,526,400
Proper Divisor Sum 87,169
Digit Sum / Digital Root 23 (Root: 5)
Adjacent Primes #1439209 ← → #1439233

Radix Representation

Decimal 1439231
Binary 101011111010111111111 (21 bits)
Octal 0o5372777
Hexadecimal 0x15F5FF

Divisor Catalog (8)

1 19 211 359 4,009 6,821 75,749 1,439,231

Collatz Trajectory (181 steps to reach 1)

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

1,439,231 4,317,694 2,158,847 6,476,542 3,238,271 9,714,814 4,857,407 14,572,222 7,286,111 21,858,334 10,929,167 32,787,502 16,393,751 49,181,254 24,590,627 73,771,882 36,885,941 110,657,824 55,328,912 27,664,456 13,832,228 6,916,114 3,458,057 10,374,172 5,187,086 2,593,543 7,780,630 3,890,315 11,670,946 5,835,473 17,506,420 8,753,210 4,376,605 13,129,816 6,564,908 3,282,454 1,641,227 4,923,682 2,461,841 7,385,524 3,692,762 1,846,381 5,539,144 2,769,572 1,384,786 692,393 2,077,180 1,038,590 519,295 1,557,886 778,943 2,336,830 1,168,415 3,505,246 1,752,623 5,257,870 2,628,935 7,886,806 3,943,403 11,830,210

More profiles

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