2,631,409

11 × 139 × 1721

2,631,409 factors as 11 × 139 × 1721. Its 8 positive divisors give a proper-divisor sum of 261,551, so this integer is deficient. The Collatz stopping time is 143 steps.

Prime Factor Structure

Factorization String 11 × 139 × 1721

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 2,892,960

Proper Divisor Sum 261,551

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #2631401 ← → #2631427

Radix Representation

Decimal	2631409
Binary	1010000010011011110001 (22 bits)
Octal	0o12023361
Hexadecimal	0x2826F1

Divisor Catalog (8)

1 11 139 1,529 1,721 18,931 239,219 2,631,409

Collatz Trajectory (143 steps to reach 1)

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

2,631,409 7,894,228 3,947,114 1,973,557 5,920,672 2,960,336 1,480,168 740,084 370,042 185,021 555,064 277,532 138,766 69,383 208,150 104,075 312,226 156,113 468,340 234,170 117,085 351,256 175,628 87,814 43,907 131,722 65,861 197,584 98,792 49,396 24,698 12,349 37,048 18,524 9,262 4,631 13,894 6,947 20,842 10,421 31,264 15,632 7,816 3,908 1,954 977 2,932 1,466 733 2,200 1,100 550 275 826 413 1,240 620 310 155 466

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