1,628,258

2 × 814129

1,628,258 factors as 2 × 814129. Its 4 positive divisors give a proper-divisor sum of 814,132, so this integer is deficient. The Collatz stopping time is 62 steps.

Prime Factor Structure

Factorization String 2 × 814129

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 2,442,390

Proper Divisor Sum 814,132

Digit Sum / Digital Root 32 (Root: 5)

Adjacent Primes #1628227 ← → #1628261

Radix Representation

Decimal	1628258
Binary	110001101100001100010 (21 bits)
Octal	0o6154142
Hexadecimal	0x18D862

Divisor Catalog (4)

1 2 814,129 1,628,258

Collatz Trajectory (62 steps to reach 1)

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

1,628,258 814,129 2,442,388 1,221,194 610,597 1,831,792 915,896 457,948 228,974 114,487 343,462 171,731 515,194 257,597 772,792 386,396 193,198 96,599 289,798 144,899 434,698 217,349 652,048 326,024 163,012 81,506 40,753 122,260 61,130 30,565 91,696 45,848 22,924 11,462 5,731 17,194 8,597 25,792 12,896 6,448 3,224 1,612 806 403 1,210 605 1,816 908 454 227 682 341 1,024 512 256 128 64 32 16 8

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