6,619,860

2² × 3³ × 5 × 13 × 23 × 41

Starting at 6,619,860, the Collatz iteration reaches 1 after 147 steps. The first transition is 3309930; the starting value is even with 192 positive divisors.

Prime Factor Structure

Factorization String 2^2 × 3^3 × 5 × 13 × 23 × 41

Distinct Prime Factors 6

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 192

Divisor Sum (σ) 23,708,160

Proper Divisor Sum 17,088,300

Digit Sum / Digital Root 36 (Root: 9)

Adjacent Primes #6619849 ← → #6619861

Radix Representation

Decimal	6619860
Binary	11001010000001011010100 (23 bits)
Octal	0o31201324
Hexadecimal	0x6502D4

Divisor Catalog (60 of 192)

1 2 3 4 5 6 9 10 12 13 15 18 20 23 26 27 30 36 39 41 45 46 52 54 60 65 69 78 82 90 92 108 115 117 123 130 135 138 156 164 180 195 205 207 230 234 246 260 270 276 299 345 351 369 390 410 414 460 468 492

Collatz Trajectory (147 steps to reach 1)

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

6,619,860 3,309,930 1,654,965 4,964,896 2,482,448 1,241,224 620,612 310,306 155,153 465,460 232,730 116,365 349,096 174,548 87,274 43,637 130,912 65,456 32,728 16,364 8,182 4,091 12,274 6,137 18,412 9,206 4,603 13,810 6,905 20,716 10,358 5,179 15,538 7,769 23,308 11,654 5,827 17,482 8,741 26,224 13,112 6,556 3,278 1,639 4,918 2,459 7,378 3,689 11,068 5,534 2,767 8,302 4,151 12,454 6,227 18,682 9,341 28,024 14,012 7,006

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