1,566,867

3 × 522289

Starting at 1,566,867, the Collatz iteration reaches 1 after 70 steps. The first transition is 4700602; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 3 × 522289

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 2,089,160

Proper Divisor Sum 522,293

Digit Sum / Digital Root 39 (Root: 3)

Adjacent Primes #1566857 ← → #1566881

Radix Representation

Decimal	1566867
Binary	101111110100010010011 (21 bits)
Octal	0o5764223
Hexadecimal	0x17E893

Divisor Catalog (4)

1 3 522,289 1,566,867

Collatz Trajectory (70 steps to reach 1)

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

1,566,867 4,700,602 2,350,301 7,050,904 3,525,452 1,762,726 881,363 2,644,090 1,322,045 3,966,136 1,983,068 991,534 495,767 1,487,302 743,651 2,230,954 1,115,477 3,346,432 1,673,216 836,608 418,304 209,152 104,576 52,288 26,144 13,072 6,536 3,268 1,634 817 2,452 1,226 613 1,840 920 460 230 115 346 173 520 260 130 65 196 98 49 148 74 37 112 56 28 14 7 22 11 34 17 52

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