1,445,915

5 × 71 × 4073

Starting at 1,445,915, the Collatz iteration reaches 1 after 243 steps. The first transition is 4337746; the starting value is odd with 8 positive divisors.

Prime Factor Structure

Factorization String 5 × 71 × 4073

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 1,759,968

Proper Divisor Sum 314,053

Digit Sum / Digital Root 29 (Root: 2)

Adjacent Primes #1445887 ← → #1445921

Radix Representation

Decimal	1445915
Binary	101100001000000011011 (21 bits)
Octal	0o5410033
Hexadecimal	0x16101B

Divisor Catalog (8)

1 5 71 355 4,073 20,365 289,183 1,445,915

Collatz Trajectory (243 steps to reach 1)

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

1,445,915 4,337,746 2,168,873 6,506,620 3,253,310 1,626,655 4,879,966 2,439,983 7,319,950 3,659,975 10,979,926 5,489,963 16,469,890 8,234,945 24,704,836 12,352,418 6,176,209 18,528,628 9,264,314 4,632,157 13,896,472 6,948,236 3,474,118 1,737,059 5,211,178 2,605,589 7,816,768 3,908,384 1,954,192 977,096 488,548 244,274 122,137 366,412 183,206 91,603 274,810 137,405 412,216 206,108 103,054 51,527 154,582 77,291 231,874 115,937 347,812 173,906 86,953 260,860 130,430 65,215 195,646 97,823 293,470 146,735 440,206 220,103 660,310 330,155

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