λ
Ratio Atlas

1,890,369

32 × 13 × 107 × 151
Deficient Odd Composite

1,890,369 factors as 3^2 × 13 × 107 × 151. Its 24 positive divisors give a proper-divisor sum of 1,097,343, so this integer is deficient. The Collatz stopping time is 109 steps.

Prime Factor Structure

Factorization String 3^2 × 13 × 107 × 151
Distinct Prime Factors 4
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 24
Divisor Sum (σ) 2,987,712
Proper Divisor Sum 1,097,343
Digit Sum / Digital Root 36 (Root: 9)
Adjacent Primes #1890337 ← → #1890373

Radix Representation

Decimal 1890369
Binary 111001101100001000001 (21 bits)
Octal 0o7154101
Hexadecimal 0x1CD841

Divisor Catalog (24)

1 3 9 13 39 107 117 151 321 453 963 1,359 1,391 1,963 4,173 5,889 12,519 16,157 17,667 48,471 145,413 210,041 630,123 1,890,369

Collatz Trajectory (109 steps to reach 1)

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

1,890,369 5,671,108 2,835,554 1,417,777 4,253,332 2,126,666 1,063,333 3,190,000 1,595,000 797,500 398,750 199,375 598,126 299,063 897,190 448,595 1,345,786 672,893 2,018,680 1,009,340 504,670 252,335 757,006 378,503 1,135,510 567,755 1,703,266 851,633 2,554,900 1,277,450 638,725 1,916,176 958,088 479,044 239,522 119,761 359,284 179,642 89,821 269,464 134,732 67,366 33,683 101,050 50,525 151,576 75,788 37,894 18,947 56,842 28,421 85,264 42,632 21,316 10,658 5,329 15,988 7,994 3,997 11,992

More profiles

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