4,307,855

5 × 861571

Starting at 4,307,855, the Collatz iteration reaches 1 after 167 steps. The first transition is 12923566; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 5 × 861571

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 5,169,432

Proper Divisor Sum 861,577

Digit Sum / Digital Root 32 (Root: 5)

Adjacent Primes #4307833 ← → #4307857

Radix Representation

Decimal	4307855
Binary	10000011011101110001111 (23 bits)
Octal	0o20335617
Hexadecimal	0x41BB8F

Divisor Catalog (4)

1 5 861,571 4,307,855

Collatz Trajectory (167 steps to reach 1)

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

4,307,855 12,923,566 6,461,783 19,385,350 9,692,675 29,078,026 14,539,013 43,617,040 21,808,520 10,904,260 5,452,130 2,726,065 8,178,196 4,089,098 2,044,549 6,133,648 3,066,824 1,533,412 766,706 383,353 1,150,060 575,030 287,515 862,546 431,273 1,293,820 646,910 323,455 970,366 485,183 1,455,550 727,775 2,183,326 1,091,663 3,274,990 1,637,495 4,912,486 2,456,243 7,368,730 3,684,365 11,053,096 5,526,548 2,763,274 1,381,637 4,144,912 2,072,456 1,036,228 518,114 259,057 777,172 388,586 194,293 582,880 291,440 145,720 72,860 36,430 18,215 54,646 27,323

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