210,637

7 × 30091

Starting at 210,637, the Collatz iteration reaches 1 after 142 steps. The first transition is 631912; the starting value is odd with 4 positive divisors.

Prime Factor Structure

Factorization String 7 × 30091

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 240,736

Proper Divisor Sum 30,099

Digit Sum / Digital Root 19 (Root: 1)

Adjacent Primes #210631 ← → #210643

Radix Representation

Decimal	210637
Binary	110011011011001101 (18 bits)
Octal	0o633315
Hexadecimal	0x336CD

Divisor Catalog (4)

1 7 30,091 210,637

Collatz Trajectory (142 steps to reach 1)

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

210,637 631,912 315,956 157,978 78,989 236,968 118,484 59,242 29,621 88,864 44,432 22,216 11,108 5,554 2,777 8,332 4,166 2,083 6,250 3,125 9,376 4,688 2,344 1,172 586 293 880 440 220 110 55 166 83 250 125 376 188 94 47 142 71 214 107 322 161 484 242 121 364 182 91 274 137 412 206 103 310 155 466 233

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