400,436

2² × 100109

Prime Factor Structure

Factorization String 2^2 × 100109

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Total Divisors 6

Divisor Sum (σ) 700,770

Proper Divisor Sum 300,334

Digit Sum / Digital Root 17 (Root: 8)

Adjacent Primes #400429 ← → #400441

1 2 4 100,109 200,218 400,436

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

400,436 200,218 100,109 300,328 150,164 75,082 37,541 112,624 56,312 28,156 14,078 7,039 21,118 10,559 31,678 15,839 47,518 23,759 71,278 35,639 106,918 53,459 160,378 80,189 240,568 120,284 60,142 30,071 90,214 45,107 135,322 67,661 202,984 101,492 50,746 25,373 76,120 38,060 19,030 9,515 28,546 14,273 42,820 21,410 10,705 32,116 16,058 8,029 24,088 12,044 6,022 3,011 9,034 4,517 13,552 6,776 3,388 1,694 847 2,542

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