8,923,990

2 × 5 × 71 × 12569

Starting at 8,923,990, the Collatz iteration reaches 1 after 256 steps. The first transition is 4461995; the starting value is even with 16 positive divisors.

Prime Factor Structure

Factorization String 2 × 5 × 71 × 12569

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 16,290,720

Proper Divisor Sum 7,366,730

Digit Sum / Digital Root 40 (Root: 4)

Adjacent Primes #8923987 ← → #8923991

Radix Representation

Decimal	8923990
Binary	100010000010101101010110 (24 bits)
Octal	0o42025526
Hexadecimal	0x882B56

Divisor Catalog (16)

1 2 5 10 71 142 355 710 12,569 25,138 62,845 125,690 892,399 1,784,798 4,461,995 8,923,990

Collatz Trajectory (256 steps to reach 1)

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

8,923,990 4,461,995 13,385,986 6,692,993 20,078,980 10,039,490 5,019,745 15,059,236 7,529,618 3,764,809 11,294,428 5,647,214 2,823,607 8,470,822 4,235,411 12,706,234 6,353,117 19,059,352 9,529,676 4,764,838 2,382,419 7,147,258 3,573,629 10,720,888 5,360,444 2,680,222 1,340,111 4,020,334 2,010,167 6,030,502 3,015,251 9,045,754 4,522,877 13,568,632 6,784,316 3,392,158 1,696,079 5,088,238 2,544,119 7,632,358 3,816,179 11,448,538 5,724,269 17,172,808 8,586,404 4,293,202 2,146,601 6,439,804 3,219,902 1,609,951 4,829,854 2,414,927 7,244,782 3,622,391 10,867,174 5,433,587 16,300,762 8,150,381 24,451,144 12,225,572

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