λ
Sigma Notebook

818,492

22 × 204623
Deficient Even Composite

818,492 is even and not a perfect square. Its factorization is 2^2 × 204623 and its 6 divisors sum to 1,432,368.

Prime Factor Structure

Factorization String 2^2 × 204623
Distinct Prime Factors 2
Square Status No
Abundance Measure Deficient

Analytical Properties

Total Divisors 6
Divisor Sum (σ) 1,432,368
Proper Divisor Sum 613,876
Digit Sum / Digital Root 32 (Root: 5)
Adjacent Primes #818473 ← → #818509

Radix Representation

Decimal 818492
Binary 11000111110100111100 (20 bits)
Octal 0o3076474
Hexadecimal 0xC7D3C

Divisor Catalog (6)

1 2 4 204,623 409,246 818,492

Collatz Trajectory (206 steps to reach 1)

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

818,492 409,246 204,623 613,870 306,935 920,806 460,403 1,381,210 690,605 2,071,816 1,035,908 517,954 258,977 776,932 388,466 194,233 582,700 291,350 145,675 437,026 218,513 655,540 327,770 163,885 491,656 245,828 122,914 61,457 184,372 92,186 46,093 138,280 69,140 34,570 17,285 51,856 25,928 12,964 6,482 3,241 9,724 4,862 2,431 7,294 3,647 10,942 5,471 16,414 8,207 24,622 12,311 36,934 18,467 55,402 27,701 83,104 41,552 20,776 10,388 5,194

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