428,688

2⁴ × 3² × 13 × 229

Prime Factor Structure

Factorization String 2^4 × 3^2 × 13 × 229

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Total Divisors 60

Divisor Sum (σ) 1,297,660

Proper Divisor Sum 868,972

Digit Sum / Digital Root 36 (Root: 9)

Adjacent Primes #428683 ← → #428693

1 2 3 4 6 8 9 12 13 16 18 24 26 36 39 48 52 72 78 104 117 144 156 208 229 234 312 458 468 624 687 916 936 1,374 1,832 1,872 2,061 2,748 2,977 3,664 4,122 5,496 5,954 8,244 8,931 10,992 11,908 16,488 17,862 23,816 26,793 32,976 35,724 47,632 53,586 71,448 107,172 142,896 214,344 428,688

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

428,688 214,344 107,172 53,586 26,793 80,380 40,190 20,095 60,286 30,143 90,430 45,215 135,646 67,823 203,470 101,735 305,206 152,603 457,810 228,905 686,716 343,358 171,679 515,038 257,519 772,558 386,279 1,158,838 579,419 1,738,258 869,129 2,607,388 1,303,694 651,847 1,955,542 977,771 2,933,314 1,466,657 4,399,972 2,199,986 1,099,993 3,299,980 1,649,990 824,995 2,474,986 1,237,493 3,712,480 1,856,240 928,120 464,060 232,030 116,015 348,046 174,023 522,070 261,035 783,106 391,553 1,174,660 587,330

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