3² × 23 × 29 × 43

Prime Factor Structure

Factorization String 3^2 × 23 × 29 × 43

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 411,840

Proper Divisor Sum 153,711

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #258127 ← → #258131

1 3 9 23 29 43 69 87 129 207 261 387 667 989 1,247 2,001 2,967 3,741 6,003 8,901 11,223 28,681 86,043 258,129

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

258,129 774,388 387,194 193,597 580,792 290,396 145,198 72,599 217,798 108,899 326,698 163,349 490,048 245,024 122,512 61,256 30,628 15,314 7,657 22,972 11,486 5,743 17,230 8,615 25,846 12,923 38,770 19,385 58,156 29,078 14,539 43,618 21,809 65,428 32,714 16,357 49,072 24,536 12,268 6,134 3,067 9,202 4,601 13,804 6,902 3,451 10,354 5,177 15,532 7,766 3,883 11,650 5,825 17,476 8,738 4,369 13,108 6,554 3,277 9,832

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