1,636,629

3 × 545543

1,636,629 factors as 3 × 545543. Its 4 positive divisors give a proper-divisor sum of 545,547, so this integer is deficient. The Collatz stopping time is 207 steps.

Prime Factor Structure

Factorization String 3 × 545543

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 2,182,176

Proper Divisor Sum 545,547

Digit Sum / Digital Root 33 (Root: 6)

Adjacent Primes #1636627 ← → #1636637

Radix Representation

Decimal	1636629
Binary	110001111100100010101 (21 bits)
Octal	0o6174425
Hexadecimal	0x18F915

Divisor Catalog (4)

1 3 545,543 1,636,629

Collatz Trajectory (207 steps to reach 1)

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

1,636,629 4,909,888 2,454,944 1,227,472 613,736 306,868 153,434 76,717 230,152 115,076 57,538 28,769 86,308 43,154 21,577 64,732 32,366 16,183 48,550 24,275 72,826 36,413 109,240 54,620 27,310 13,655 40,966 20,483 61,450 30,725 92,176 46,088 23,044 11,522 5,761 17,284 8,642 4,321 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

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