2 × 3 × 7 × 15581

Prime Factor Structure

Factorization String 2 × 3 × 7 × 15581

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 16

Divisor Sum (σ) 1,495,872

Proper Divisor Sum 841,470

Digit Sum / Digital Root 21 (Root: 3)

Adjacent Primes #654397 ← → #654413

1 2 3 6 7 14 21 42 15,581 31,162 46,743 93,486 109,067 218,134 327,201 654,402

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

654,402 327,201 981,604 490,802 245,401 736,204 368,102 184,051 552,154 276,077 828,232 414,116 207,058 103,529 310,588 155,294 77,647 232,942 116,471 349,414 174,707 524,122 262,061 786,184 393,092 196,546 98,273 294,820 147,410 73,705 221,116 110,558 55,279 165,838 82,919 248,758 124,379 373,138 186,569 559,708 279,854 139,927 419,782 209,891 629,674 314,837 944,512 472,256 236,128 118,064 59,032 29,516 14,758 7,379 22,138 11,069 33,208 16,604 8,302 4,151

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