2,591,636

2² × 647909

2,591,636 factors as 2^2 × 647909. Its 6 positive divisors give a proper-divisor sum of 1,943,734, so this integer is deficient. The Collatz stopping time is 94 steps.

Prime Factor Structure

Factorization String 2^2 × 647909

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 6

Divisor Sum (σ) 4,535,370

Proper Divisor Sum 1,943,734

Digit Sum / Digital Root 32 (Root: 5)

Adjacent Primes #2591623 ← → #2591669

Radix Representation

Decimal	2591636
Binary	1001111000101110010100 (22 bits)
Octal	0o11705624
Hexadecimal	0x278B94

Divisor Catalog (6)

1 2 4 647,909 1,295,818 2,591,636

Collatz Trajectory (94 steps to reach 1)

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

2,591,636 1,295,818 647,909 1,943,728 971,864 485,932 242,966 121,483 364,450 182,225 546,676 273,338 136,669 410,008 205,004 102,502 51,251 153,754 76,877 230,632 115,316 57,658 28,829 86,488 43,244 21,622 10,811 32,434 16,217 48,652 24,326 12,163 36,490 18,245 54,736 27,368 13,684 6,842 3,421 10,264 5,132 2,566 1,283 3,850 1,925 5,776 2,888 1,444 722 361 1,084 542 271 814 407 1,222 611 1,834 917 2,752

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