42,166,340

2² × 5 × 2108317

Prime Factor Structure

Factorization String 2^2 × 5 × 2108317

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Total Divisors 12

Divisor Sum (σ) 88,549,356

Proper Divisor Sum 46,383,016

Digit Sum / Digital Root 26 (Root: 8)

Adjacent Primes #42166321 ← → #42166351

1 2 4 5 10 20 2,108,317 4,216,634 8,433,268 10,541,585 21,083,170 42,166,340

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

42,166,340 21,083,170 10,541,585 31,624,756 15,812,378 7,906,189 23,718,568 11,859,284 5,929,642 2,964,821 8,894,464 4,447,232 2,223,616 1,111,808 555,904 277,952 138,976 69,488 34,744 17,372 8,686 4,343 13,030 6,515 19,546 9,773 29,320 14,660 7,330 3,665 10,996 5,498 2,749 8,248 4,124 2,062 1,031 3,094 1,547 4,642 2,321 6,964 3,482 1,741 5,224 2,612 1,306 653 1,960 980 490 245 736 368 184 92 46 23 70 35

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