2,878,789

67 × 42967

Starting at 2,878,789, the Collatz iteration reaches 1 after 213 steps. The first transition is 8636368; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 67 × 42967

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 2,921,824

Proper Divisor Sum 43,035

Digit Sum / Digital Root 49 (Root: 4)

Adjacent Primes #2878783 ← → #2878793

Radix Representation

Decimal	2878789
Binary	1010111110110101000101 (22 bits)
Octal	0o12766505
Hexadecimal	0x2BED45

Divisor Catalog (4)

1 67 42,967 2,878,789

Collatz Trajectory (213 steps to reach 1)

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

2,878,789 8,636,368 4,318,184 2,159,092 1,079,546 539,773 1,619,320 809,660 404,830 202,415 607,246 303,623 910,870 455,435 1,366,306 683,153 2,049,460 1,024,730 512,365 1,537,096 768,548 384,274 192,137 576,412 288,206 144,103 432,310 216,155 648,466 324,233 972,700 486,350 243,175 729,526 364,763 1,094,290 547,145 1,641,436 820,718 410,359 1,231,078 615,539 1,846,618 923,309 2,769,928 1,384,964 692,482 346,241 1,038,724 519,362 259,681 779,044 389,522 194,761 584,284 292,142 146,071 438,214 219,107 657,322

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