λ
Prime Ledger

1,781,493

3 × 72 × 12119
Deficient Odd Composite

1,781,493 has the prime decomposition 3 × 7^2 × 12119. Its 3 distinct prime factors produce 12 positive divisors.

Prime Factor Structure

Factorization String 3 × 7^2 × 12119
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 12
Divisor Sum (σ) 2,763,360
Proper Divisor Sum 981,867
Digit Sum / Digital Root 33 (Root: 6)
Adjacent Primes #1781467 ← → #1781503

Radix Representation

Decimal 1781493
Binary 110110010111011110101 (21 bits)
Octal 0o6627365
Hexadecimal 0x1B2EF5

Divisor Catalog (12)

1 3 7 21 49 147 12,119 36,357 84,833 254,499 593,831 1,781,493

Collatz Trajectory (282 steps to reach 1)

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

1,781,493 5,344,480 2,672,240 1,336,120 668,060 334,030 167,015 501,046 250,523 751,570 375,785 1,127,356 563,678 281,839 845,518 422,759 1,268,278 634,139 1,902,418 951,209 2,853,628 1,426,814 713,407 2,140,222 1,070,111 3,210,334 1,605,167 4,815,502 2,407,751 7,223,254 3,611,627 10,834,882 5,417,441 16,252,324 8,126,162 4,063,081 12,189,244 6,094,622 3,047,311 9,141,934 4,570,967 13,712,902 6,856,451 20,569,354 10,284,677 30,854,032 15,427,016 7,713,508 3,856,754 1,928,377 5,785,132 2,892,566 1,446,283 4,338,850 2,169,425 6,508,276 3,254,138 1,627,069 4,881,208 2,440,604

More profiles

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