4,397,187

3 × 1465729

Starting at 4,397,187, the Collatz iteration reaches 1 after 180 steps. The first transition is 13191562; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 3 × 1465729

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 5,862,920

Proper Divisor Sum 1,465,733

Digit Sum / Digital Root 39 (Root: 3)

Adjacent Primes #4397177 ← → #4397201

Radix Representation

Decimal	4397187
Binary	10000110001100010000011 (23 bits)
Octal	0o20614203
Hexadecimal	0x431883

Divisor Catalog (4)

1 3 1,465,729 4,397,187

Collatz Trajectory (180 steps to reach 1)

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

4,397,187 13,191,562 6,595,781 19,787,344 9,893,672 4,946,836 2,473,418 1,236,709 3,710,128 1,855,064 927,532 463,766 231,883 695,650 347,825 1,043,476 521,738 260,869 782,608 391,304 195,652 97,826 48,913 146,740 73,370 36,685 110,056 55,028 27,514 13,757 41,272 20,636 10,318 5,159 15,478 7,739 23,218 11,609 34,828 17,414 8,707 26,122 13,061 39,184 19,592 9,796 4,898 2,449 7,348 3,674 1,837 5,512 2,756 1,378 689 2,068 1,034 517 1,552 776

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