1,491,971

13 × 17 × 43 × 157

Prime Factor Structure

Factorization String 13 × 17 × 43 × 157

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Total Divisors 16

Divisor Sum (σ) 1,751,904

Proper Divisor Sum 259,933

Digit Sum / Digital Root 32 (Root: 5)

Adjacent Primes #1491967 ← → #1491977

1 13 17 43 157 221 559 731 2,041 2,669 6,751 9,503 34,697 87,763 114,767 1,491,971

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

1,491,971 4,475,914 2,237,957 6,713,872 3,356,936 1,678,468 839,234 419,617 1,258,852 629,426 314,713 944,140 472,070 236,035 708,106 354,053 1,062,160 531,080 265,540 132,770 66,385 199,156 99,578 49,789 149,368 74,684 37,342 18,671 56,014 28,007 84,022 42,011 126,034 63,017 189,052 94,526 47,263 141,790 70,895 212,686 106,343 319,030 159,515 478,546 239,273 717,820 358,910 179,455 538,366 269,183 807,550 403,775 1,211,326 605,663 1,816,990 908,495 2,725,486 1,362,743 4,088,230 2,044,115

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