401,261

7² × 19 × 431

Prime Factor Structure

Factorization String 7^2 × 19 × 431

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Total Divisors 12

Divisor Sum (σ) 492,480

Proper Divisor Sum 91,219

Digit Sum / Digital Root 14 (Root: 5)

Adjacent Primes #401243 ← → #401279

1 7 19 49 133 431 931 3,017 8,189 21,119 57,323 401,261

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

401,261 1,203,784 601,892 300,946 150,473 451,420 225,710 112,855 338,566 169,283 507,850 253,925 761,776 380,888 190,444 95,222 47,611 142,834 71,417 214,252 107,126 53,563 160,690 80,345 241,036 120,518 60,259 180,778 90,389 271,168 135,584 67,792 33,896 16,948 8,474 4,237 12,712 6,356 3,178 1,589 4,768 2,384 1,192 596 298 149 448 224 112 56 28 14 7 22 11 34 17 52 26 13

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