1,389,315

3 × 5 × 23 × 4027

Starting at 1,389,315, the Collatz iteration reaches 1 after 230 steps. The first transition is 4167946; the starting value is odd with 16 positive divisors.

Prime Factor Structure

Factorization String 3 × 5 × 23 × 4027

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 2,320,128

Proper Divisor Sum 930,813

Digit Sum / Digital Root 30 (Root: 3)

Adjacent Primes #1389301 ← → #1389319

Radix Representation

Decimal	1389315
Binary	101010011001100000011 (21 bits)
Octal	0o5231403
Hexadecimal	0x153303

Divisor Catalog (16)

1 3 5 15 23 69 115 345 4,027 12,081 20,135 60,405 92,621 277,863 463,105 1,389,315

Collatz Trajectory (230 steps to reach 1)

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

1,389,315 4,167,946 2,083,973 6,251,920 3,125,960 1,562,980 781,490 390,745 1,172,236 586,118 293,059 879,178 439,589 1,318,768 659,384 329,692 164,846 82,423 247,270 123,635 370,906 185,453 556,360 278,180 139,090 69,545 208,636 104,318 52,159 156,478 78,239 234,718 117,359 352,078 176,039 528,118 264,059 792,178 396,089 1,188,268 594,134 297,067 891,202 445,601 1,336,804 668,402 334,201 1,002,604 501,302 250,651 751,954 375,977 1,127,932 563,966 281,983 845,950 422,975 1,268,926 634,463 1,903,390

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