399,026

2 × 131 × 1523

399,026 factors as 2 × 131 × 1523. Its 8 positive divisors give a proper-divisor sum of 204,478, so this integer is deficient. The Collatz stopping time is 117 steps.

Prime Factor Structure

Factorization String 2 × 131 × 1523

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 8

Divisor Sum (σ) 603,504

Proper Divisor Sum 204,478

Digit Sum / Digital Root 29 (Root: 2)

Adjacent Primes #399023 ← → #399031

Radix Representation

Decimal	399026
Binary	1100001011010110010 (19 bits)
Octal	0o1413262
Hexadecimal	0x616B2

Divisor Catalog (8)

1 2 131 262 1,523 3,046 199,513 399,026

Collatz Trajectory (117 steps to reach 1)

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

399,026 199,513 598,540 299,270 149,635 448,906 224,453 673,360 336,680 168,340 84,170 42,085 126,256 63,128 31,564 15,782 7,891 23,674 11,837 35,512 17,756 8,878 4,439 13,318 6,659 19,978 9,989 29,968 14,984 7,492 3,746 1,873 5,620 2,810 1,405 4,216 2,108 1,054 527 1,582 791 2,374 1,187 3,562 1,781 5,344 2,672 1,336 668 334 167 502 251 754 377 1,132 566 283 850 425

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