2² × 3 × 13² × 43

Prime Factor Structure

Factorization String 2^2 × 3 × 13^2 × 43

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 36

Divisor Sum (σ) 225,456

Proper Divisor Sum 138,252

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #87187 ← → #87211

1 2 3 4 6 12 13 26 39 43 52 78 86 129 156 169 172 258 338 507 516 559 676 1,014 1,118 1,677 2,028 2,236 3,354 6,708 7,267 14,534 21,801 29,068 43,602 87,204

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

87,204 43,602 21,801 65,404 32,702 16,351 49,054 24,527 73,582 36,791 110,374 55,187 165,562 82,781 248,344 124,172 62,086 31,043 93,130 46,565 139,696 69,848 34,924 17,462 8,731 26,194 13,097 39,292 19,646 9,823 29,470 14,735 44,206 22,103 66,310 33,155 99,466 49,733 149,200 74,600 37,300 18,650 9,325 27,976 13,988 6,994 3,497 10,492 5,246 2,623 7,870 3,935 11,806 5,903 17,710 8,855 26,566 13,283 39,850 19,925

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