13,891,745

5 × 7² × 56701

13,891,745 factors as 5 × 7^2 × 56701. Its 12 positive divisors give a proper-divisor sum of 5,500,339, so this integer is deficient. The Collatz stopping time is 267 steps.

Prime Factor Structure

Factorization String 5 × 7^2 × 56701

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 19,392,084

Proper Divisor Sum 5,500,339

Digit Sum / Digital Root 38 (Root: 2)

Adjacent Primes #13891741 ← → #13891763

Radix Representation

Decimal	13891745
Binary	110100111111100010100001 (24 bits)
Octal	0o64774241
Hexadecimal	0xD3F8A1

Divisor Catalog (12)

1 5 7 35 49 245 56,701 283,505 396,907 1,984,535 2,778,349 13,891,745

Collatz Trajectory (267 steps to reach 1)

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

13,891,745 41,675,236 20,837,618 10,418,809 31,256,428 15,628,214 7,814,107 23,442,322 11,721,161 35,163,484 17,581,742 8,790,871 26,372,614 13,186,307 39,558,922 19,779,461 59,338,384 29,669,192 14,834,596 7,417,298 3,708,649 11,125,948 5,562,974 2,781,487 8,344,462 4,172,231 12,516,694 6,258,347 18,775,042 9,387,521 28,162,564 14,081,282 7,040,641 21,121,924 10,560,962 5,280,481 15,841,444 7,920,722 3,960,361 11,881,084 5,940,542 2,970,271 8,910,814 4,455,407 13,366,222 6,683,111 20,049,334 10,024,667 30,074,002 15,037,001 45,111,004 22,555,502 11,277,751 33,833,254 16,916,627 50,749,882 25,374,941 76,124,824 38,062,412 19,031,206

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