20,121,084

2² × 3² × 139 × 4021

Prime Factor Structure

Factorization String 2^2 × 3^2 × 139 × 4021

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Total Divisors 36

Divisor Sum (σ) 51,240,280

Proper Divisor Sum 31,119,196

Digit Sum / Digital Root 18 (Root: 9)

Adjacent Primes #20121061 ← → #20121091

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

20,121,084 10,060,542 5,030,271 15,090,814 7,545,407 22,636,222 11,318,111 33,954,334 16,977,167 50,931,502 25,465,751 76,397,254 38,198,627 114,595,882 57,297,941 171,893,824 85,946,912 42,973,456 21,486,728 10,743,364 5,371,682 2,685,841 8,057,524 4,028,762 2,014,381 6,043,144 3,021,572 1,510,786 755,393 2,266,180 1,133,090 566,545 1,699,636 849,818 424,909 1,274,728 637,364 318,682 159,341 478,024 239,012 119,506 59,753 179,260 89,630 44,815 134,446 67,223 201,670 100,835 302,506 151,253 453,760 226,880 113,440 56,720 28,360 14,180 7,090 3,545

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