15,618,532

2² × 19 × 205507

15,618,532 factors as 2^2 × 19 × 205507. Its 12 positive divisors give a proper-divisor sum of 13,152,588, so this integer is deficient. The Collatz stopping time is 130 steps.

Prime Factor Structure

Factorization String 2^2 × 19 × 205507

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 28,771,120

Proper Divisor Sum 13,152,588

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #15618527 ← → #15618553

Radix Representation

Decimal	15618532
Binary	111011100101000111100100 (24 bits)
Octal	0o73450744
Hexadecimal	0xEE51E4

Divisor Catalog (12)

1 2 4 19 38 76 205,507 411,014 822,028 3,904,633 7,809,266 15,618,532

Collatz Trajectory (130 steps to reach 1)

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

15,618,532 7,809,266 3,904,633 11,713,900 5,856,950 2,928,475 8,785,426 4,392,713 13,178,140 6,589,070 3,294,535 9,883,606 4,941,803 14,825,410 7,412,705 22,238,116 11,119,058 5,559,529 16,678,588 8,339,294 4,169,647 12,508,942 6,254,471 18,763,414 9,381,707 28,145,122 14,072,561 42,217,684 21,108,842 10,554,421 31,663,264 15,831,632 7,915,816 3,957,908 1,978,954 989,477 2,968,432 1,484,216 742,108 371,054 185,527 556,582 278,291 834,874 417,437 1,252,312 626,156 313,078 156,539 469,618 234,809 704,428 352,214 176,107 528,322 264,161 792,484 396,242 198,121 594,364

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