15,605,242

2 × 7802621

15,605,242 factors as 2 × 7802621. Its 4 positive divisors give a proper-divisor sum of 7,802,624, so this integer is deficient. The Collatz stopping time is 187 steps.

Prime Factor Structure

Factorization String 2 × 7802621

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 23,407,866

Proper Divisor Sum 7,802,624

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #15605237 ← → #15605243

Radix Representation

Decimal	15605242
Binary	111011100001110111111010 (24 bits)
Octal	0o73416772
Hexadecimal	0xEE1DFA

Divisor Catalog (4)

1 2 7,802,621 15,605,242

Collatz Trajectory (187 steps to reach 1)

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

15,605,242 7,802,621 23,407,864 11,703,932 5,851,966 2,925,983 8,777,950 4,388,975 13,166,926 6,583,463 19,750,390 9,875,195 29,625,586 14,812,793 44,438,380 22,219,190 11,109,595 33,328,786 16,664,393 49,993,180 24,996,590 12,498,295 37,494,886 18,747,443 56,242,330 28,121,165 84,363,496 42,181,748 21,090,874 10,545,437 31,636,312 15,818,156 7,909,078 3,954,539 11,863,618 5,931,809 17,795,428 8,897,714 4,448,857 13,346,572 6,673,286 3,336,643 10,009,930 5,004,965 15,014,896 7,507,448 3,753,724 1,876,862 938,431 2,815,294 1,407,647 4,222,942 2,111,471 6,334,414 3,167,207 9,501,622 4,750,811 14,252,434 7,126,217 21,378,652

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