16,201,620

2² × 3⁴ × 5 × 73 × 137

Prime Factor Structure

Factorization String 2^2 × 3^4 × 5 × 73 × 137

Distinct Prime Factors 5

Square Status No

Abundance Measure Abundant

Total Divisors 120

Divisor Sum (σ) 51,897,384

Proper Divisor Sum 35,695,764

Digit Sum / Digital Root 18 (Root: 9)

Adjacent Primes #16201613 ← → #16201621

1 2 3 4 5 6 9 10 12 15 18 20 27 30 36 45 54 60 73 81 90 108 135 137 146 162 180 219 270 274 292 324 365 405 411 438 540 548 657 685 730 810 822 876 1,095 1,233 1,314 1,370 1,460 1,620 1,644 1,971 2,055 2,190 2,466 2,628 2,740 3,285 3,699 3,942

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

16,201,620 8,100,810 4,050,405 12,151,216 6,075,608 3,037,804 1,518,902 759,451 2,278,354 1,139,177 3,417,532 1,708,766 854,383 2,563,150 1,281,575 3,844,726 1,922,363 5,767,090 2,883,545 8,650,636 4,325,318 2,162,659 6,487,978 3,243,989 9,731,968 4,865,984 2,432,992 1,216,496 608,248 304,124 152,062 76,031 228,094 114,047 342,142 171,071 513,214 256,607 769,822 384,911 1,154,734 577,367 1,732,102 866,051 2,598,154 1,299,077 3,897,232 1,948,616 974,308 487,154 243,577 730,732 365,366 182,683 548,050 274,025 822,076 411,038 205,519 616,558

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