15,128,326

2 × 7564163

15,128,326 factors as 2 × 7564163. Its 4 positive divisors give a proper-divisor sum of 7,564,166, so this integer is deficient. The Collatz stopping time is 55 steps.

Prime Factor Structure

Factorization String 2 × 7564163

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 22,692,492

Proper Divisor Sum 7,564,166

Digit Sum / Digital Root 28 (Root: 1)

Adjacent Primes #15128299 ← → #15128329

Radix Representation

Decimal	15128326
Binary	111001101101011100000110 (24 bits)
Octal	0o71553406
Hexadecimal	0xE6D706

Divisor Catalog (4)

1 2 7,564,163 15,128,326

Collatz Trajectory (55 steps to reach 1)

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

15,128,326 7,564,163 22,692,490 11,346,245 34,038,736 17,019,368 8,509,684 4,254,842 2,127,421 6,382,264 3,191,132 1,595,566 797,783 2,393,350 1,196,675 3,590,026 1,795,013 5,385,040 2,692,520 1,346,260 673,130 336,565 1,009,696 504,848 252,424 126,212 63,106 31,553 94,660 47,330 23,665 70,996 35,498 17,749 53,248 26,624 13,312 6,656 3,328 1,664 832 416 208 104 52 26 13 40 20 10 5 16 8 4 2 1

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