15,127,615

5 × 43 × 71 × 991

15,127,615 factors as 5 × 43 × 71 × 991. Its 16 positive divisors give a proper-divisor sum of 3,728,321, so this integer is deficient. The Collatz stopping time is 112 steps.

Prime Factor Structure

Factorization String 5 × 43 × 71 × 991

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 18,855,936

Proper Divisor Sum 3,728,321

Digit Sum / Digital Root 28 (Root: 1)

Adjacent Primes #15127613 ← → #15127621

Radix Representation

Decimal	15127615
Binary	111001101101010000111111 (24 bits)
Octal	0o71552077
Hexadecimal	0xE6D43F

Divisor Catalog (16)

1 5 43 71 215 355 991 3,053 4,955 15,265 42,613 70,361 213,065 351,805 3,025,523 15,127,615

Collatz Trajectory (112 steps to reach 1)

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

15,127,615 45,382,846 22,691,423 68,074,270 34,037,135 102,111,406 51,055,703 153,167,110 76,583,555 229,750,666 114,875,333 344,626,000 172,313,000 86,156,500 43,078,250 21,539,125 64,617,376 32,308,688 16,154,344 8,077,172 4,038,586 2,019,293 6,057,880 3,028,940 1,514,470 757,235 2,271,706 1,135,853 3,407,560 1,703,780 851,890 425,945 1,277,836 638,918 319,459 958,378 479,189 1,437,568 718,784 359,392 179,696 89,848 44,924 22,462 11,231 33,694 16,847 50,542 25,271 75,814 37,907 113,722 56,861 170,584 85,292 42,646 21,323 63,970 31,985 95,956

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