3 × 5² × 23 × 47

Prime Factor Structure

Factorization String 3 × 5^2 × 23 × 47

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 142,848

Proper Divisor Sum 61,773

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #81071 ← → #81077

1 3 5 15 23 25 47 69 75 115 141 235 345 575 705 1,081 1,175 1,725 3,243 3,525 5,405 16,215 27,025 81,075

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

81,075 243,226 121,613 364,840 182,420 91,210 45,605 136,816 68,408 34,204 17,102 8,551 25,654 12,827 38,482 19,241 57,724 28,862 14,431 43,294 21,647 64,942 32,471 97,414 48,707 146,122 73,061 219,184 109,592 54,796 27,398 13,699 41,098 20,549 61,648 30,824 15,412 7,706 3,853 11,560 5,780 2,890 1,445 4,336 2,168 1,084 542 271 814 407 1,222 611 1,834 917 2,752 1,376 688 344 172 86

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