λ
Sigma Notebook

649,568

25 × 53 × 383
Abundant Even Composite

649,568 is even and not a perfect square. Its factorization is 2^5 × 53 × 383 and its 24 divisors sum to 1,306,368.

Prime Factor Structure

Factorization String 2^5 × 53 × 383
Distinct Prime Factors 3
Square Status No
Abundance Measure Abundant

Analytical Properties

Total Divisors 24
Divisor Sum (σ) 1,306,368
Proper Divisor Sum 656,800
Digit Sum / Digital Root 38 (Root: 2)
Adjacent Primes #649567 ← → #649573

Radix Representation

Decimal 649568
Binary 10011110100101100000 (20 bits)
Octal 0o2364540
Hexadecimal 0x9E960

Divisor Catalog (24)

1 2 4 8 16 32 53 106 212 383 424 766 848 1,532 1,696 3,064 6,128 12,256 20,299 40,598 81,196 162,392 324,784 649,568

Collatz Trajectory (40 steps to reach 1)

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

649,568 324,784 162,392 81,196 40,598 20,299 60,898 30,449 91,348 45,674 22,837 68,512 34,256 17,128 8,564 4,282 2,141 6,424 3,212 1,606 803 2,410 1,205 3,616 1,808 904 452 226 113 340 170 85 256 128 64 32 16 8 4 2 1

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