6,561,828

2² × 3² × 7 × 13 × 2003

Prime Factor Structure

Factorization String 2^2 × 3^2 × 7 × 13 × 2003

Distinct Prime Factors 5

Square Status No

Abundance Measure Abundant

Total Divisors 72

Divisor Sum (σ) 20,424,768

Proper Divisor Sum 13,862,940

Digit Sum / Digital Root 36 (Root: 9)

Adjacent Primes #6561827 ← → #6561833

1 2 3 4 6 7 9 12 13 14 18 21 26 28 36 39 42 52 63 78 84 91 117 126 156 182 234 252 273 364 468 546 819 1,092 1,638 2,003 3,276 4,006 6,009 8,012 12,018 14,021 18,027 24,036 26,039 28,042 36,054 42,063 52,078 56,084 72,108 78,117 84,126 104,156 126,189 156,234 168,252 182,273 234,351 252,378

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

6,561,828 3,280,914 1,640,457 4,921,372 2,460,686 1,230,343 3,691,030 1,845,515 5,536,546 2,768,273 8,304,820 4,152,410 2,076,205 6,228,616 3,114,308 1,557,154 778,577 2,335,732 1,167,866 583,933 1,751,800 875,900 437,950 218,975 656,926 328,463 985,390 492,695 1,478,086 739,043 2,217,130 1,108,565 3,325,696 1,662,848 831,424 415,712 207,856 103,928 51,964 25,982 12,991 38,974 19,487 58,462 29,231 87,694 43,847 131,542 65,771 197,314 98,657 295,972 147,986 73,993 221,980 110,990 55,495 166,486 83,243 249,730

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