2,801,591

13 × 215507

2,801,591 factors as 13 × 215507. Its 4 positive divisors give a proper-divisor sum of 215,521, so this integer is deficient. The Collatz stopping time is 275 steps.

Prime Factor Structure

Factorization String 13 × 215507

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 3,017,112

Proper Divisor Sum 215,521

Digit Sum / Digital Root 26 (Root: 8)

Adjacent Primes #2801587 ← → #2801593

Radix Representation

Decimal	2801591
Binary	1010101011111110110111 (22 bits)
Octal	0o12537667
Hexadecimal	0x2ABFB7

Divisor Catalog (4)

1 13 215,507 2,801,591

Collatz Trajectory (275 steps to reach 1)

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

2,801,591 8,404,774 4,202,387 12,607,162 6,303,581 18,910,744 9,455,372 4,727,686 2,363,843 7,091,530 3,545,765 10,637,296 5,318,648 2,659,324 1,329,662 664,831 1,994,494 997,247 2,991,742 1,495,871 4,487,614 2,243,807 6,731,422 3,365,711 10,097,134 5,048,567 15,145,702 7,572,851 22,718,554 11,359,277 34,077,832 17,038,916 8,519,458 4,259,729 12,779,188 6,389,594 3,194,797 9,584,392 4,792,196 2,396,098 1,198,049 3,594,148 1,797,074 898,537 2,695,612 1,347,806 673,903 2,021,710 1,010,855 3,032,566 1,516,283 4,548,850 2,274,425 6,823,276 3,411,638 1,705,819 5,117,458 2,558,729 7,676,188 3,838,094

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