λ
Sigma Notebook

1,587,505

5 × 79 × 4019
Deficient Odd Composite

1,587,505 is odd and not a perfect square. Its factorization is 5 × 79 × 4019 and its 8 divisors sum to 1,929,600.

Prime Factor Structure

Factorization String 5 × 79 × 4019
Distinct Prime Factors 3
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 8
Divisor Sum (σ) 1,929,600
Proper Divisor Sum 342,095
Digit Sum / Digital Root 31 (Root: 4)
Adjacent Primes #1587503 ← → #1587527

Radix Representation

Decimal 1587505
Binary 110000011100100110001 (21 bits)
Octal 0o6034461
Hexadecimal 0x183931

Divisor Catalog (8)

1 5 79 395 4,019 20,095 317,501 1,587,505

Collatz Trajectory (150 steps to reach 1)

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

1,587,505 4,762,516 2,381,258 1,190,629 3,571,888 1,785,944 892,972 446,486 223,243 669,730 334,865 1,004,596 502,298 251,149 753,448 376,724 188,362 94,181 282,544 141,272 70,636 35,318 17,659 52,978 26,489 79,468 39,734 19,867 59,602 29,801 89,404 44,702 22,351 67,054 33,527 100,582 50,291 150,874 75,437 226,312 113,156 56,578 28,289 84,868 42,434 21,217 63,652 31,826 15,913 47,740 23,870 11,935 35,806 17,903 53,710 26,855 80,566 40,283 120,850 60,425

More profiles

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