630,289

11² × 5209

Starting at 630,289, the Collatz iteration reaches 1 after 53 steps. The first transition is 1890868; the starting value is odd with 6 positive divisors.

Prime Factor Structure

Factorization String 11^2 × 5209

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 6

Divisor Sum (σ) 692,930

Proper Divisor Sum 62,641

Digit Sum / Digital Root 28 (Root: 1)

Adjacent Primes #630281 ← → #630299

Radix Representation

Decimal	630289
Binary	10011001111000010001 (20 bits)
Octal	0o2317021
Hexadecimal	0x99E11

Divisor Catalog (6)

1 11 121 5,209 57,299 630,289

Collatz Trajectory (53 steps to reach 1)

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

630,289 1,890,868 945,434 472,717 1,418,152 709,076 354,538 177,269 531,808 265,904 132,952 66,476 33,238 16,619 49,858 24,929 74,788 37,394 18,697 56,092 28,046 14,023 42,070 21,035 63,106 31,553 94,660 47,330 23,665 70,996 35,498 17,749 53,248 26,624 13,312 6,656 3,328 1,664 832 416 208 104 52 26 13 40 20 10 5 16 8 4 2 1

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