3,215,037

3 × 7² × 21871

Prime Factor Structure

Factorization String 3 × 7^2 × 21871

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Total Divisors 12

Divisor Sum (σ) 4,986,816

Proper Divisor Sum 1,771,779

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #3215021 ← → #3215039

1 3 7 21 49 147 21,871 65,613 153,097 459,291 1,071,679 3,215,037

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

3,215,037 9,645,112 4,822,556 2,411,278 1,205,639 3,616,918 1,808,459 5,425,378 2,712,689 8,138,068 4,069,034 2,034,517 6,103,552 3,051,776 1,525,888 762,944 381,472 190,736 95,368 47,684 23,842 11,921 35,764 17,882 8,941 26,824 13,412 6,706 3,353 10,060 5,030 2,515 7,546 3,773 11,320 5,660 2,830 1,415 4,246 2,123 6,370 3,185 9,556 4,778 2,389 7,168 3,584 1,792 896 448 224 112 56 28 14 7 22 11 34 17

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