861,091

7 × 11 × 53 × 211

Prime Factor Structure

Factorization String 7 × 11 × 53 × 211

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Total Divisors 16

Divisor Sum (σ) 1,099,008

Proper Divisor Sum 237,917

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #861089 ← → #861109

1 7 11 53 77 211 371 583 1,477 2,321 4,081 11,183 16,247 78,281 123,013 861,091

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

861,091 2,583,274 1,291,637 3,874,912 1,937,456 968,728 484,364 242,182 121,091 363,274 181,637 544,912 272,456 136,228 68,114 34,057 102,172 51,086 25,543 76,630 38,315 114,946 57,473 172,420 86,210 43,105 129,316 64,658 32,329 96,988 48,494 24,247 72,742 36,371 109,114 54,557 163,672 81,836 40,918 20,459 61,378 30,689 92,068 46,034 23,017 69,052 34,526 17,263 51,790 25,895 77,686 38,843 116,530 58,265 174,796 87,398 43,699 131,098 65,549 196,648

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