λ
Sequence Observatory

1,498,853

19 × 78887
Deficient Odd Composite

Starting at 1,498,853, the Collatz iteration reaches 1 after 181 steps. The first transition is 4496560; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 19 × 78887
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 1,577,760
Proper Divisor Sum 78,907
Digit Sum / Digital Root 38 (Root: 2)
Adjacent Primes #1498843 ← → #1498921

Radix Representation

Decimal 1498853
Binary 101101101111011100101 (21 bits)
Octal 0o5557345
Hexadecimal 0x16DEE5

Divisor Catalog (4)

1 19 78,887 1,498,853

Collatz Trajectory (181 steps to reach 1)

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

1,498,853 4,496,560 2,248,280 1,124,140 562,070 281,035 843,106 421,553 1,264,660 632,330 316,165 948,496 474,248 237,124 118,562 59,281 177,844 88,922 44,461 133,384 66,692 33,346 16,673 50,020 25,010 12,505 37,516 18,758 9,379 28,138 14,069 42,208 21,104 10,552 5,276 2,638 1,319 3,958 1,979 5,938 2,969 8,908 4,454 2,227 6,682 3,341 10,024 5,012 2,506 1,253 3,760 1,880 940 470 235 706 353 1,060 530 265

More profiles

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