15,222,520

2³ × 5 × 380563

15,222,520 factors as 2^3 × 5 × 380563. Its 16 positive divisors give a proper-divisor sum of 19,028,240, so this integer is abundant. The Collatz stopping time is 81 steps.

Prime Factor Structure

Factorization String 2^3 × 5 × 380563

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 34,250,760

Proper Divisor Sum 19,028,240

Digit Sum / Digital Root 19 (Root: 1)

Adjacent Primes #15222511 ← → #15222523

Radix Representation

Decimal	15222520
Binary	111010000100011011111000 (24 bits)
Octal	0o72043370
Hexadecimal	0xE846F8

Divisor Catalog (16)

1 2 4 5 8 10 20 40 380,563 761,126 1,522,252 1,902,815 3,044,504 3,805,630 7,611,260 15,222,520

Collatz Trajectory (81 steps to reach 1)

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

15,222,520 7,611,260 3,805,630 1,902,815 5,708,446 2,854,223 8,562,670 4,281,335 12,844,006 6,422,003 19,266,010 9,633,005 28,899,016 14,449,508 7,224,754 3,612,377 10,837,132 5,418,566 2,709,283 8,127,850 4,063,925 12,191,776 6,095,888 3,047,944 1,523,972 761,986 380,993 1,142,980 571,490 285,745 857,236 428,618 214,309 642,928 321,464 160,732 80,366 40,183 120,550 60,275 180,826 90,413 271,240 135,620 67,810 33,905 101,716 50,858 25,429 76,288 38,144 19,072 9,536 4,768 2,384 1,192 596 298 149 448

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