λ
Sequence Observatory

1,991,283

3 × 7 × 94823
Deficient Odd Composite

Starting at 1,991,283, the Collatz iteration reaches 1 after 122 steps. The first transition is 5973850; the starting value is odd with 8 positive divisors.

Prime Factor Structure

Factorization String 3 × 7 × 94823
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 3,034,368
Proper Divisor Sum 1,043,085
Digit Sum / Digital Root 33 (Root: 6)
Adjacent Primes #1991281 ← → #1991293

Radix Representation

Decimal 1991283
Binary 111100110001001110011 (21 bits)
Octal 0o7461163
Hexadecimal 0x1E6273

Divisor Catalog (8)

1 3 7 21 94,823 284,469 663,761 1,991,283

Collatz Trajectory (122 steps to reach 1)

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

1,991,283 5,973,850 2,986,925 8,960,776 4,480,388 2,240,194 1,120,097 3,360,292 1,680,146 840,073 2,520,220 1,260,110 630,055 1,890,166 945,083 2,835,250 1,417,625 4,252,876 2,126,438 1,063,219 3,189,658 1,594,829 4,784,488 2,392,244 1,196,122 598,061 1,794,184 897,092 448,546 224,273 672,820 336,410 168,205 504,616 252,308 126,154 63,077 189,232 94,616 47,308 23,654 11,827 35,482 17,741 53,224 26,612 13,306 6,653 19,960 9,980 4,990 2,495 7,486 3,743 11,230 5,615 16,846 8,423 25,270 12,635

More profiles

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