398,424

2³ × 3 × 13 × 1277

Prime Factor Structure

Factorization String 2^3 × 3 × 13 × 1277

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Total Divisors 32

Divisor Sum (σ) 1,073,520

Proper Divisor Sum 675,096

Digit Sum / Digital Root 30 (Root: 3)

Adjacent Primes #398423 ← → #398441

1 2 3 4 6 8 12 13 24 26 39 52 78 104 156 312 1,277 2,554 3,831 5,108 7,662 10,216 15,324 16,601 30,648 33,202 49,803 66,404 99,606 132,808 199,212 398,424

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

398,424 199,212 99,606 49,803 149,410 74,705 224,116 112,058 56,029 168,088 84,044 42,022 21,011 63,034 31,517 94,552 47,276 23,638 11,819 35,458 17,729 53,188 26,594 13,297 39,892 19,946 9,973 29,920 14,960 7,480 3,740 1,870 935 2,806 1,403 4,210 2,105 6,316 3,158 1,579 4,738 2,369 7,108 3,554 1,777 5,332 2,666 1,333 4,000 2,000 1,000 500 250 125 376 188 94 47 142 71

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