388,821

3 × 129607

For 388,821, the 4 positive divisors have a total of 518,432. Removing 388,821 leaves 129,611, which gives the deficient classification.

Prime Factor Structure

Factorization String 3 × 129607

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 518,432

Proper Divisor Sum 129,611

Digit Sum / Digital Root 30 (Root: 3)

Adjacent Primes #388813 ← → #388823

Radix Representation

Decimal	388821
Binary	1011110111011010101 (19 bits)
Octal	0o1367325
Hexadecimal	0x5EED5

Divisor Catalog (4)

1 3 129,607 388,821

Collatz Trajectory (68 steps to reach 1)

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

388,821 1,166,464 583,232 291,616 145,808 72,904 36,452 18,226 9,113 27,340 13,670 6,835 20,506 10,253 30,760 15,380 7,690 3,845 11,536 5,768 2,884 1,442 721 2,164 1,082 541 1,624 812 406 203 610 305 916 458 229 688 344 172 86 43 130 65 196 98 49 148 74 37 112 56 28 14 7 22 11 34 17 52 26 13

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