2,981,985

3 × 5 × 61 × 3259

2,981,985 factors as 3 × 5 × 61 × 3259. Its 16 positive divisors give a proper-divisor sum of 1,868,895, so this integer is deficient. The Collatz stopping time is 350 steps.

Prime Factor Structure

Factorization String 3 × 5 × 61 × 3259

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 4,850,880

Proper Divisor Sum 1,868,895

Digit Sum / Digital Root 42 (Root: 6)

Adjacent Primes #2981981 ← → #2981999

Radix Representation

Decimal	2981985
Binary	1011011000000001100001 (22 bits)
Octal	0o13300141
Hexadecimal	0x2D8061

Divisor Catalog (16)

1 3 5 15 61 183 305 915 3,259 9,777 16,295 48,885 198,799 596,397 993,995 2,981,985

Collatz Trajectory (350 steps to reach 1)

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

2,981,985 8,945,956 4,472,978 2,236,489 6,709,468 3,354,734 1,677,367 5,032,102 2,516,051 7,548,154 3,774,077 11,322,232 5,661,116 2,830,558 1,415,279 4,245,838 2,122,919 6,368,758 3,184,379 9,553,138 4,776,569 14,329,708 7,164,854 3,582,427 10,747,282 5,373,641 16,120,924 8,060,462 4,030,231 12,090,694 6,045,347 18,136,042 9,068,021 27,204,064 13,602,032 6,801,016 3,400,508 1,700,254 850,127 2,550,382 1,275,191 3,825,574 1,912,787 5,738,362 2,869,181 8,607,544 4,303,772 2,151,886 1,075,943 3,227,830 1,613,915 4,841,746 2,420,873 7,262,620 3,631,310 1,815,655 5,446,966 2,723,483 8,170,450 4,085,225

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