1,389,773

7 × 11 × 18049

Starting at 1,389,773, the Collatz iteration reaches 1 after 212 steps. The first transition is 4169320; the starting value is odd with 8 positive divisors.

Prime Factor Structure

Factorization String 7 × 11 × 18049

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 1,732,800

Proper Divisor Sum 343,027

Digit Sum / Digital Root 38 (Root: 2)

Adjacent Primes #1389769 ← → #1389797

Radix Representation

Decimal	1389773
Binary	101010011010011001101 (21 bits)
Octal	0o5232315
Hexadecimal	0x1534CD

Divisor Catalog (8)

1 7 11 77 18,049 126,343 198,539 1,389,773

Collatz Trajectory (212 steps to reach 1)

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

1,389,773 4,169,320 2,084,660 1,042,330 521,165 1,563,496 781,748 390,874 195,437 586,312 293,156 146,578 73,289 219,868 109,934 54,967 164,902 82,451 247,354 123,677 371,032 185,516 92,758 46,379 139,138 69,569 208,708 104,354 52,177 156,532 78,266 39,133 117,400 58,700 29,350 14,675 44,026 22,013 66,040 33,020 16,510 8,255 24,766 12,383 37,150 18,575 55,726 27,863 83,590 41,795 125,386 62,693 188,080 94,040 47,020 23,510 11,755 35,266 17,633 52,900

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