6,421,378

2 × 83 × 101 × 383

Starting at 6,421,378, the Collatz iteration reaches 1 after 121 steps. The first transition is 3210689; the starting value is even with 16 positive divisors.

Prime Factor Structure

Factorization String 2 × 83 × 101 × 383

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 9,870,336

Proper Divisor Sum 3,448,958

Digit Sum / Digital Root 31 (Root: 4)

Adjacent Primes #6421369 ← → #6421403

Radix Representation

Decimal	6421378
Binary	11000011111101110000010 (23 bits)
Octal	0o30375602
Hexadecimal	0x61FB82

Divisor Catalog (16)

1 2 83 101 166 202 383 766 8,383 16,766 31,789 38,683 63,578 77,366 3,210,689 6,421,378

Collatz Trajectory (121 steps to reach 1)

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

6,421,378 3,210,689 9,632,068 4,816,034 2,408,017 7,224,052 3,612,026 1,806,013 5,418,040 2,709,020 1,354,510 677,255 2,031,766 1,015,883 3,047,650 1,523,825 4,571,476 2,285,738 1,142,869 3,428,608 1,714,304 857,152 428,576 214,288 107,144 53,572 26,786 13,393 40,180 20,090 10,045 30,136 15,068 7,534 3,767 11,302 5,651 16,954 8,477 25,432 12,716 6,358 3,179 9,538 4,769 14,308 7,154 3,577 10,732 5,366 2,683 8,050 4,025 12,076 6,038 3,019 9,058 4,529 13,588 6,794

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