λ
Sequence Observatory

1,862,187

3 × 472 × 281
Deficient Odd Composite

Starting at 1,862,187, the Collatz iteration reaches 1 after 65 steps. The first transition is 5586562; the starting value is odd with 12 positive divisors.

Prime Factor Structure

Factorization String 3 × 47^2 × 281
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 12
Divisor Sum (σ) 2,545,896
Proper Divisor Sum 683,709
Digit Sum / Digital Root 33 (Root: 6)
Adjacent Primes #1862153 ← → #1862213

Radix Representation

Decimal 1862187
Binary 111000110101000101011 (21 bits)
Octal 0o7065053
Hexadecimal 0x1C6A2B

Divisor Catalog (12)

1 3 47 141 281 843 2,209 6,627 13,207 39,621 620,729 1,862,187

Collatz Trajectory (65 steps to reach 1)

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

1,862,187 5,586,562 2,793,281 8,379,844 4,189,922 2,094,961 6,284,884 3,142,442 1,571,221 4,713,664 2,356,832 1,178,416 589,208 294,604 147,302 73,651 220,954 110,477 331,432 165,716 82,858 41,429 124,288 62,144 31,072 15,536 7,768 3,884 1,942 971 2,914 1,457 4,372 2,186 1,093 3,280 1,640 820 410 205 616 308 154 77 232 116 58 29 88 44 22 11 34 17 52 26 13 40 20 10

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