15,287,825

5² × 7 × 87359

15,287,825 factors as 5^2 × 7 × 87359. Its 12 positive divisors give a proper-divisor sum of 6,377,455, so this integer is deficient. The Collatz stopping time is 205 steps.

Prime Factor Structure

Factorization String 5^2 × 7 × 87359

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 21,665,280

Proper Divisor Sum 6,377,455

Digit Sum / Digital Root 38 (Root: 2)

Adjacent Primes #15287819 ← → #15287849

Radix Representation

Decimal	15287825
Binary	111010010100011000010001 (24 bits)
Octal	0o72243021
Hexadecimal	0xE94611

Divisor Catalog (12)

1 5 7 25 35 175 87,359 436,795 611,513 2,183,975 3,057,565 15,287,825

Collatz Trajectory (205 steps to reach 1)

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

15,287,825 45,863,476 22,931,738 11,465,869 34,397,608 17,198,804 8,599,402 4,299,701 12,899,104 6,449,552 3,224,776 1,612,388 806,194 403,097 1,209,292 604,646 302,323 906,970 453,485 1,360,456 680,228 340,114 170,057 510,172 255,086 127,543 382,630 191,315 573,946 286,973 860,920 430,460 215,230 107,615 322,846 161,423 484,270 242,135 726,406 363,203 1,089,610 544,805 1,634,416 817,208 408,604 204,302 102,151 306,454 153,227 459,682 229,841 689,524 344,762 172,381 517,144 258,572 129,286 64,643 193,930 96,965

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