16,242,561

3² × 439 × 4111

16,242,561 factors as 3^2 × 439 × 4111. Its 12 positive divisors give a proper-divisor sum of 7,278,079, so this integer is deficient. The Collatz stopping time is 306 steps.

Prime Factor Structure

Factorization String 3^2 × 439 × 4111

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 23,520,640

Proper Divisor Sum 7,278,079

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #16242557 ← → #16242563

Radix Representation

Decimal	16242561
Binary	111101111101011110000001 (24 bits)
Octal	0o75753601
Hexadecimal	0xF7D781

Divisor Catalog (12)

1 3 9 439 1,317 3,951 4,111 12,333 36,999 1,804,729 5,414,187 16,242,561

Collatz Trajectory (306 steps to reach 1)

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

16,242,561 48,727,684 24,363,842 12,181,921 36,545,764 18,272,882 9,136,441 27,409,324 13,704,662 6,852,331 20,556,994 10,278,497 30,835,492 15,417,746 7,708,873 23,126,620 11,563,310 5,781,655 17,344,966 8,672,483 26,017,450 13,008,725 39,026,176 19,513,088 9,756,544 4,878,272 2,439,136 1,219,568 609,784 304,892 152,446 76,223 228,670 114,335 343,006 171,503 514,510 257,255 771,766 385,883 1,157,650 578,825 1,736,476 868,238 434,119 1,302,358 651,179 1,953,538 976,769 2,930,308 1,465,154 732,577 2,197,732 1,098,866 549,433 1,648,300 824,150 412,075 1,236,226 618,113

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