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16,625,680

24 × 5 × 207821
Abundant Even Composite

16,625,680 factors as 2^4 × 5 × 207821. Its 20 positive divisors give a proper-divisor sum of 22,029,212, so this integer is abundant. The Collatz stopping time is 231 steps.

Prime Factor Structure

Factorization String 2^4 × 5 × 207821
Distinct Prime Factors 3
Square Status No
Abundance Measure Abundant

Analytical Properties

Total Divisors 20
Divisor Sum (σ) 38,654,892
Proper Divisor Sum 22,029,212
Digit Sum / Digital Root 34 (Root: 7)
Adjacent Primes #16625663 ← → #16625681

Radix Representation

Decimal 16625680
Binary 111111011011000000010000 (24 bits)
Octal 0o77330020
Hexadecimal 0xFDB010

Divisor Catalog (20)

1 2 4 5 8 10 16 20 40 80 207,821 415,642 831,284 1,039,105 1,662,568 2,078,210 3,325,136 4,156,420 8,312,840 16,625,680

Collatz Trajectory (231 steps to reach 1)

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

16,625,680 8,312,840 4,156,420 2,078,210 1,039,105 3,117,316 1,558,658 779,329 2,337,988 1,168,994 584,497 1,753,492 876,746 438,373 1,315,120 657,560 328,780 164,390 82,195 246,586 123,293 369,880 184,940 92,470 46,235 138,706 69,353 208,060 104,030 52,015 156,046 78,023 234,070 117,035 351,106 175,553 526,660 263,330 131,665 394,996 197,498 98,749 296,248 148,124 74,062 37,031 111,094 55,547 166,642 83,321 249,964 124,982 62,491 187,474 93,737 281,212 140,606 70,303 210,910 105,455

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