775,561

19 × 40819

775,561 factors as 19 × 40819. Its 4 positive divisors give a proper-divisor sum of 40,839, so this integer is deficient. The Collatz stopping time is 206 steps.

Prime Factor Structure

Factorization String 19 × 40819

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 816,400

Proper Divisor Sum 40,839

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #775553 ← → #775573

Radix Representation

Decimal	775561
Binary	10111101010110001001 (20 bits)
Octal	0o2752611
Hexadecimal	0xBD589

Divisor Catalog (4)

1 19 40,819 775,561

Collatz Trajectory (206 steps to reach 1)

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

775,561 2,326,684 1,163,342 581,671 1,745,014 872,507 2,617,522 1,308,761 3,926,284 1,963,142 981,571 2,944,714 1,472,357 4,417,072 2,208,536 1,104,268 552,134 276,067 828,202 414,101 1,242,304 621,152 310,576 155,288 77,644 38,822 19,411 58,234 29,117 87,352 43,676 21,838 10,919 32,758 16,379 49,138 24,569 73,708 36,854 18,427 55,282 27,641 82,924 41,462 20,731 62,194 31,097 93,292 46,646 23,323 69,970 34,985 104,956 52,478 26,239 78,718 39,359 118,078 59,039 177,118

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