243,371

19 × 12809

Starting at 243,371, the Collatz iteration reaches 1 after 62 steps. The first transition is 730114; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 19 × 12809

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 256,200

Proper Divisor Sum 12,829

Digit Sum / Digital Root 20 (Root: 2)

Adjacent Primes #243367 ← → #243391

Radix Representation

Decimal	243371
Binary	111011011010101011 (18 bits)
Octal	0o733253
Hexadecimal	0x3B6AB

Divisor Catalog (4)

1 19 12,809 243,371

Collatz Trajectory (62 steps to reach 1)

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

243,371 730,114 365,057 1,095,172 547,586 273,793 821,380 410,690 205,345 616,036 308,018 154,009 462,028 231,014 115,507 346,522 173,261 519,784 259,892 129,946 64,973 194,920 97,460 48,730 24,365 73,096 36,548 18,274 9,137 27,412 13,706 6,853 20,560 10,280 5,140 2,570 1,285 3,856 1,928 964 482 241 724 362 181 544 272 136 68 34 17 52 26 13 40 20 10 5 16 8

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