145,876

2² × 36469

Starting at 145,876, the Collatz iteration reaches 1 after 157 steps. The first transition is 72938; the starting value is even with 6 positive divisors.

Prime Factor Structure

Factorization String 2^2 × 36469

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 6

Divisor Sum (σ) 255,290

Proper Divisor Sum 109,414

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #145861 ← → #145879

Radix Representation

Decimal	145876
Binary	100011100111010100 (18 bits)
Octal	0o434724
Hexadecimal	0x239D4

Divisor Catalog (6)

1 2 4 36,469 72,938 145,876

Collatz Trajectory (157 steps to reach 1)

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

145,876 72,938 36,469 109,408 54,704 27,352 13,676 6,838 3,419 10,258 5,129 15,388 7,694 3,847 11,542 5,771 17,314 8,657 25,972 12,986 6,493 19,480 9,740 4,870 2,435 7,306 3,653 10,960 5,480 2,740 1,370 685 2,056 1,028 514 257 772 386 193 580 290 145 436 218 109 328 164 82 41 124 62 31 94 47 142 71 214 107 322 161

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