2,773,850

2 × 5² × 29 × 1913

Starting at 2,773,850, the Collatz iteration reaches 1 after 169 steps. The first transition is 1386925; the starting value is even with 24 positive divisors.

Prime Factor Structure

Factorization String 2 × 5^2 × 29 × 1913

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 5,340,060

Proper Divisor Sum 2,566,210

Digit Sum / Digital Root 32 (Root: 5)

Adjacent Primes #2773843 ← → #2773871

Radix Representation

Decimal	2773850
Binary	1010100101001101011010 (22 bits)
Octal	0o12451532
Hexadecimal	0x2A535A

Divisor Catalog (24)

1 2 5 10 25 29 50 58 145 290 725 1,450 1,913 3,826 9,565 19,130 47,825 55,477 95,650 110,954 277,385 554,770 1,386,925 2,773,850

Collatz Trajectory (169 steps to reach 1)

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

2,773,850 1,386,925 4,160,776 2,080,388 1,040,194 520,097 1,560,292 780,146 390,073 1,170,220 585,110 292,555 877,666 438,833 1,316,500 658,250 329,125 987,376 493,688 246,844 123,422 61,711 185,134 92,567 277,702 138,851 416,554 208,277 624,832 312,416 156,208 78,104 39,052 19,526 9,763 29,290 14,645 43,936 21,968 10,984 5,492 2,746 1,373 4,120 2,060 1,030 515 1,546 773 2,320 1,160 580 290 145 436 218 109 328 164 82

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