438,406

2 × 19 × 83 × 139

Prime Factor Structure

Factorization String 2 × 19 × 83 × 139

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Total Divisors 16

Divisor Sum (σ) 705,600

Proper Divisor Sum 267,194

Digit Sum / Digital Root 25 (Root: 7)

Adjacent Primes #438401 ← → #438409

1 2 19 38 83 139 166 278 1,577 2,641 3,154 5,282 11,537 23,074 219,203 438,406

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

438,406 219,203 657,610 328,805 986,416 493,208 246,604 123,302 61,651 184,954 92,477 277,432 138,716 69,358 34,679 104,038 52,019 156,058 78,029 234,088 117,044 58,522 29,261 87,784 43,892 21,946 10,973 32,920 16,460 8,230 4,115 12,346 6,173 18,520 9,260 4,630 2,315 6,946 3,473 10,420 5,210 2,605 7,816 3,908 1,954 977 2,932 1,466 733 2,200 1,100 550 275 826 413 1,240 620 310 155 466

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