3² × 7 × 37 × 61

Prime Factor Structure

Factorization String 3^2 × 7 × 37 × 61

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 245,024

Proper Divisor Sum 102,833

Digit Sum / Digital Root 18 (Root: 9)

Adjacent Primes #142189 ← → #142193

1 3 7 9 21 37 61 63 111 183 259 333 427 549 777 1,281 2,257 2,331 3,843 6,771 15,799 20,313 47,397 142,191

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

142,191 426,574 213,287 639,862 319,931 959,794 479,897 1,439,692 719,846 359,923 1,079,770 539,885 1,619,656 809,828 404,914 202,457 607,372 303,686 151,843 455,530 227,765 683,296 341,648 170,824 85,412 42,706 21,353 64,060 32,030 16,015 48,046 24,023 72,070 36,035 108,106 54,053 162,160 81,080 40,540 20,270 10,135 30,406 15,203 45,610 22,805 68,416 34,208 17,104 8,552 4,276 2,138 1,069 3,208 1,604 802 401 1,204 602 301 904

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