990,477

3² × 167 × 659

990,477 has digital root 9. The neighboring primes are 990469 and 990487; its proper-divisor sum differs from the starting integer by -539,514.

Prime Factor Structure

Factorization String 3^2 × 167 × 659

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 1,441,440

Proper Divisor Sum 450,963

Digit Sum / Digital Root 36 (Root: 9)

Adjacent Primes #990469 ← → #990487

Radix Representation

Decimal	990477
Binary	11110001110100001101 (20 bits)
Octal	0o3616415
Hexadecimal	0xF1D0D

Divisor Catalog (12)

1 3 9 167 501 659 1,503 1,977 5,931 110,053 330,159 990,477

Collatz Trajectory (183 steps to reach 1)

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

990,477 2,971,432 1,485,716 742,858 371,429 1,114,288 557,144 278,572 139,286 69,643 208,930 104,465 313,396 156,698 78,349 235,048 117,524 58,762 29,381 88,144 44,072 22,036 11,018 5,509 16,528 8,264 4,132 2,066 1,033 3,100 1,550 775 2,326 1,163 3,490 1,745 5,236 2,618 1,309 3,928 1,964 982 491 1,474 737 2,212 1,106 553 1,660 830 415 1,246 623 1,870 935 2,806 1,403 4,210 2,105 6,316

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