2² × 5 × 11 × 331

Prime Factor Structure

Factorization String 2^2 × 5 × 11 × 331

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 167,328

Proper Divisor Sum 94,508

Digit Sum / Digital Root 19 (Root: 1)

Adjacent Primes #72817 ← → #72823

1 2 4 5 10 11 20 22 44 55 110 220 331 662 1,324 1,655 3,310 3,641 6,620 7,282 14,564 18,205 36,410 72,820

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

72,820 36,410 18,205 54,616 27,308 13,654 6,827 20,482 10,241 30,724 15,362 7,681 23,044 11,522 5,761 17,284 8,642 4,321 12,964 6,482 3,241 9,724 4,862 2,431 7,294 3,647 10,942 5,471 16,414 8,207 24,622 12,311 36,934 18,467 55,402 27,701 83,104 41,552 20,776 10,388 5,194 2,597 7,792 3,896 1,948 974 487 1,462 731 2,194 1,097 3,292 1,646 823 2,470 1,235 3,706 1,853 5,560 2,780

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