280,852

2² × 11 × 13 × 491

Starting at 280,852, the Collatz iteration reaches 1 after 145 steps. The first transition is 140426; the starting value is even with 24 positive divisors.

Prime Factor Structure

Factorization String 2^2 × 11 × 13 × 491

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 578,592

Proper Divisor Sum 297,740

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #280843 ← → #280859

Radix Representation

Decimal	280852
Binary	1000100100100010100 (19 bits)
Octal	0o1044424
Hexadecimal	0x44914

Divisor Catalog (24)

1 2 4 11 13 22 26 44 52 143 286 491 572 982 1,964 5,401 6,383 10,802 12,766 21,604 25,532 70,213 140,426 280,852

Collatz Trajectory (145 steps to reach 1)

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

280,852 140,426 70,213 210,640 105,320 52,660 26,330 13,165 39,496 19,748 9,874 4,937 14,812 7,406 3,703 11,110 5,555 16,666 8,333 25,000 12,500 6,250 3,125 9,376 4,688 2,344 1,172 586 293 880 440 220 110 55 166 83 250 125 376 188 94 47 142 71 214 107 322 161 484 242 121 364 182 91 274 137 412 206 103 310

← Previous Integer #280,851 Browse Full Index Next Integer #280,853 →