15,387,028

2² × 107 × 35951

15,387,028 factors as 2^2 × 107 × 35951. Its 12 positive divisors give a proper-divisor sum of 11,792,684, so this integer is deficient. The Collatz stopping time is 81 steps.

Prime Factor Structure

Factorization String 2^2 × 107 × 35951

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 27,179,712

Proper Divisor Sum 11,792,684

Digit Sum / Digital Root 34 (Root: 7)

Adjacent Primes #15387007 ← → #15387041

Radix Representation

Decimal	15387028
Binary	111010101100100110010100 (24 bits)
Octal	0o72544624
Hexadecimal	0xEAC994

Divisor Catalog (12)

1 2 4 107 214 428 35,951 71,902 143,804 3,846,757 7,693,514 15,387,028

Collatz Trajectory (81 steps to reach 1)

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

15,387,028 7,693,514 3,846,757 11,540,272 5,770,136 2,885,068 1,442,534 721,267 2,163,802 1,081,901 3,245,704 1,622,852 811,426 405,713 1,217,140 608,570 304,285 912,856 456,428 228,214 114,107 342,322 171,161 513,484 256,742 128,371 385,114 192,557 577,672 288,836 144,418 72,209 216,628 108,314 54,157 162,472 81,236 40,618 20,309 60,928 30,464 15,232 7,616 3,808 1,904 952 476 238 119 358 179 538 269 808 404 202 101 304 152 76

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