λ
Sequence Observatory

1,298,109

3 × 103 × 4201
Deficient Odd Composite

Starting at 1,298,109, the Collatz iteration reaches 1 after 80 steps. The first transition is 3894328; the starting value is odd with 8 positive divisors.

Prime Factor Structure

Factorization String 3 × 103 × 4201
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 1,748,032
Proper Divisor Sum 449,923
Digit Sum / Digital Root 30 (Root: 3)
Adjacent Primes #1298057 ← → #1298111

Radix Representation

Decimal 1298109
Binary 100111100111010111101 (21 bits)
Octal 0o4747275
Hexadecimal 0x13CEBD

Divisor Catalog (8)

1 3 103 309 4,201 12,603 432,703 1,298,109

Collatz Trajectory (80 steps to reach 1)

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

1,298,109 3,894,328 1,947,164 973,582 486,791 1,460,374 730,187 2,190,562 1,095,281 3,285,844 1,642,922 821,461 2,464,384 1,232,192 616,096 308,048 154,024 77,012 38,506 19,253 57,760 28,880 14,440 7,220 3,610 1,805 5,416 2,708 1,354 677 2,032 1,016 508 254 127 382 191 574 287 862 431 1,294 647 1,942 971 2,914 1,457 4,372 2,186 1,093 3,280 1,640 820 410 205 616 308 154 77 232

More profiles

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