520,865

5 × 104173

520,865 factors as 5 × 104173. Its 4 positive divisors give a proper-divisor sum of 104,179, so this integer is deficient. The Collatz stopping time is 102 steps.

Prime Factor Structure

Factorization String 5 × 104173

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 625,044

Proper Divisor Sum 104,179

Digit Sum / Digital Root 26 (Root: 8)

Adjacent Primes #520853 ← → #520867

Radix Representation

Decimal	520865
Binary	1111111001010100001 (19 bits)
Octal	0o1771241
Hexadecimal	0x7F2A1

Divisor Catalog (4)

1 5 104,173 520,865

Collatz Trajectory (102 steps to reach 1)

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

520,865 1,562,596 781,298 390,649 1,171,948 585,974 292,987 878,962 439,481 1,318,444 659,222 329,611 988,834 494,417 1,483,252 741,626 370,813 1,112,440 556,220 278,110 139,055 417,166 208,583 625,750 312,875 938,626 469,313 1,407,940 703,970 351,985 1,055,956 527,978 263,989 791,968 395,984 197,992 98,996 49,498 24,749 74,248 37,124 18,562 9,281 27,844 13,922 6,961 20,884 10,442 5,221 15,664 7,832 3,916 1,958 979 2,938 1,469 4,408 2,204 1,102 551

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