13,645,845

3² × 5 × 71 × 4271

13,645,845 factors as 3^2 × 5 × 71 × 4271. Its 24 positive divisors give a proper-divisor sum of 10,345,707, so this integer is deficient. The Collatz stopping time is 78 steps.

Prime Factor Structure

Factorization String 3^2 × 5 × 71 × 4271

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 23,991,552

Proper Divisor Sum 10,345,707

Digit Sum / Digital Root 36 (Root: 9)

Adjacent Primes #13645837 ← → #13645847

Radix Representation

Decimal	13645845
Binary	110100000011100000010101 (24 bits)
Octal	0o64034025
Hexadecimal	0xD03815

Divisor Catalog (24)

Collatz Trajectory (78 steps to reach 1)

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

13,645,845 40,937,536 20,468,768 10,234,384 5,117,192 2,558,596 1,279,298 639,649 1,918,948 959,474 479,737 1,439,212 719,606 359,803 1,079,410 539,705 1,619,116 809,558 404,779 1,214,338 607,169 1,821,508 910,754 455,377 1,366,132 683,066 341,533 1,024,600 512,300 256,150 128,075 384,226 192,113 576,340 288,170 144,085 432,256 216,128 108,064 54,032 27,016 13,508 6,754 3,377 10,132 5,066 2,533 7,600 3,800 1,900 950 475 1,426 713 2,140 1,070 535 1,606 803 2,410

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