21,391,749

3³ × 337 × 2351

Prime Factor Structure

Factorization String 3^3 × 337 × 2351

Distinct Prime Factors 3

Square Status No

Abundance Measure Deficient

Total Divisors 16

Divisor Sum (σ) 31,799,040

Proper Divisor Sum 10,407,291

Digit Sum / Digital Root 36 (Root: 9)

Adjacent Primes #21391723 ← → #21391751

1 3 9 27 337 1,011 2,351 3,033 7,053 9,099 21,159 63,477 792,287 2,376,861 7,130,583 21,391,749

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

21,391,749 64,175,248 32,087,624 16,043,812 8,021,906 4,010,953 12,032,860 6,016,430 3,008,215 9,024,646 4,512,323 13,536,970 6,768,485 20,305,456 10,152,728 5,076,364 2,538,182 1,269,091 3,807,274 1,903,637 5,710,912 2,855,456 1,427,728 713,864 356,932 178,466 89,233 267,700 133,850 66,925 200,776 100,388 50,194 25,097 75,292 37,646 18,823 56,470 28,235 84,706 42,353 127,060 63,530 31,765 95,296 47,648 23,824 11,912 5,956 2,978 1,489 4,468 2,234 1,117 3,352 1,676 838 419 1,258 629

Browse other published profiles and their separate link collections.

No other profiles in this collection.