15,749,815

5 × 3149963

15,749,815 factors as 5 × 3149963. Its 4 positive divisors give a proper-divisor sum of 3,149,969, so this integer is deficient. The Collatz stopping time is 148 steps.

Prime Factor Structure

Factorization String 5 × 3149963

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 18,899,784

Proper Divisor Sum 3,149,969

Digit Sum / Digital Root 40 (Root: 4)

Adjacent Primes #15749777 ← → #15749819

Radix Representation

Decimal	15749815
Binary	111100000101001010110111 (24 bits)
Octal	0o74051267
Hexadecimal	0xF052B7

Divisor Catalog (4)

1 5 3,149,963 15,749,815

Collatz Trajectory (148 steps to reach 1)

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

15,749,815 47,249,446 23,624,723 70,874,170 35,437,085 106,311,256 53,155,628 26,577,814 13,288,907 39,866,722 19,933,361 59,800,084 29,900,042 14,950,021 44,850,064 22,425,032 11,212,516 5,606,258 2,803,129 8,409,388 4,204,694 2,102,347 6,307,042 3,153,521 9,460,564 4,730,282 2,365,141 7,095,424 3,547,712 1,773,856 886,928 443,464 221,732 110,866 55,433 166,300 83,150 41,575 124,726 62,363 187,090 93,545 280,636 140,318 70,159 210,478 105,239 315,718 157,859 473,578 236,789 710,368 355,184 177,592 88,796 44,398 22,199 66,598 33,299 99,898

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