3 × 5 × 13 × 31 × 67

Prime Factor Structure

Factorization String 3 × 5 × 13 × 31 × 67

Distinct Prime Factors 5

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 32

Divisor Sum (σ) 731,136

Proper Divisor Sum 326,121

Digit Sum / Digital Root 15 (Root: 6)

Adjacent Primes #405011 ← → #405029

1 3 5 13 15 31 39 65 67 93 155 195 201 335 403 465 871 1,005 1,209 2,015 2,077 2,613 4,355 6,045 6,231 10,385 13,065 27,001 31,155 81,003 135,005 405,015

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

405,015 1,215,046 607,523 1,822,570 911,285 2,733,856 1,366,928 683,464 341,732 170,866 85,433 256,300 128,150 64,075 192,226 96,113 288,340 144,170 72,085 216,256 108,128 54,064 27,032 13,516 6,758 3,379 10,138 5,069 15,208 7,604 3,802 1,901 5,704 2,852 1,426 713 2,140 1,070 535 1,606 803 2,410 1,205 3,616 1,808 904 452 226 113 340 170 85 256 128 64 32 16 8 4 2

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