λ
Integer Codex

1,298,998

2 × 649499
Deficient Even Composite

For 1,298,998, the 4 positive divisors have a total of 1,948,500. Removing 1,298,998 leaves 649,502, which gives the deficient classification.

Prime Factor Structure

Factorization String 2 × 649499
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 4
Divisor Sum (σ) 1,948,500
Proper Divisor Sum 649,502
Digit Sum / Digital Root 46 (Root: 1)
Adjacent Primes #1298989 ← → #1299007

Radix Representation

Decimal 1298998
Binary 100111101001000110110 (21 bits)
Octal 0o4751066
Hexadecimal 0x13D236

Divisor Catalog (4)

1 2 649,499 1,298,998

Collatz Trajectory (178 steps to reach 1)

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

1,298,998 649,499 1,948,498 974,249 2,922,748 1,461,374 730,687 2,192,062 1,096,031 3,288,094 1,644,047 4,932,142 2,466,071 7,398,214 3,699,107 11,097,322 5,548,661 16,645,984 8,322,992 4,161,496 2,080,748 1,040,374 520,187 1,560,562 780,281 2,340,844 1,170,422 585,211 1,755,634 877,817 2,633,452 1,316,726 658,363 1,975,090 987,545 2,962,636 1,481,318 740,659 2,221,978 1,110,989 3,332,968 1,666,484 833,242 416,621 1,249,864 624,932 312,466 156,233 468,700 234,350 117,175 351,526 175,763 527,290 263,645 790,936 395,468 197,734 98,867 296,602

More profiles

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