684,369

3⁴ × 7 × 17 × 71

Prime Factor Structure

Factorization String 3^4 × 7 × 17 × 71

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Total Divisors 40

Divisor Sum (σ) 1,254,528

Proper Divisor Sum 570,159

Digit Sum / Digital Root 36 (Root: 9)

Adjacent Primes #684349 ← → #684373

1 3 7 9 17 21 27 51 63 71 81 119 153 189 213 357 459 497 567 639 1,071 1,207 1,377 1,491 1,917 3,213 3,621 4,473 5,751 8,449 9,639 10,863 13,419 25,347 32,589 40,257 76,041 97,767 228,123 684,369

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

684,369 2,053,108 1,026,554 513,277 1,539,832 769,916 384,958 192,479 577,438 288,719 866,158 433,079 1,299,238 649,619 1,948,858 974,429 2,923,288 1,461,644 730,822 365,411 1,096,234 548,117 1,644,352 822,176 411,088 205,544 102,772 51,386 25,693 77,080 38,540 19,270 9,635 28,906 14,453 43,360 21,680 10,840 5,420 2,710 1,355 4,066 2,033 6,100 3,050 1,525 4,576 2,288 1,144 572 286 143 430 215 646 323 970 485 1,456 728

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