1,223,940

2² × 3 × 5 × 20399

1,223,940 factors as 2^2 × 3 × 5 × 20399. Its 24 positive divisors give a proper-divisor sum of 2,203,260, so this integer is abundant. The Collatz stopping time is 85 steps.

Prime Factor Structure

Factorization String 2^2 × 3 × 5 × 20399

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 3,427,200

Proper Divisor Sum 2,203,260

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #1223939 ← → #1223941

Radix Representation

Decimal	1223940
Binary	100101010110100000100 (21 bits)
Octal	0o4526404
Hexadecimal	0x12AD04

Divisor Catalog (24)

Collatz Trajectory (85 steps to reach 1)

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

1,223,940 611,970 305,985 917,956 458,978 229,489 688,468 344,234 172,117 516,352 258,176 129,088 64,544 32,272 16,136 8,068 4,034 2,017 6,052 3,026 1,513 4,540 2,270 1,135 3,406 1,703 5,110 2,555 7,666 3,833 11,500 5,750 2,875 8,626 4,313 12,940 6,470 3,235 9,706 4,853 14,560 7,280 3,640 1,820 910 455 1,366 683 2,050 1,025 3,076 1,538 769 2,308 1,154 577 1,732 866 433 1,300

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