991981

Prime Factor Structure

Factorization String 991981

Distinct Prime Factors 1

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 2

Divisor Sum (σ) 991,982

Proper Divisor Sum 1

Digit Sum / Digital Root 37 (Root: 1)

Adjacent Primes #991979 ← → #991987

1 991,981

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

991,981 2,975,944 1,487,972 743,986 371,993 1,115,980 557,990 278,995 836,986 418,493 1,255,480 627,740 313,870 156,935 470,806 235,403 706,210 353,105 1,059,316 529,658 264,829 794,488 397,244 198,622 99,311 297,934 148,967 446,902 223,451 670,354 335,177 1,005,532 502,766 251,383 754,150 377,075 1,131,226 565,613 1,696,840 848,420 424,210 212,105 636,316 318,158 159,079 477,238 238,619 715,858 357,929 1,073,788 536,894 268,447 805,342 402,671 1,208,014 604,007 1,812,022 906,011 2,718,034 1,359,017

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