15,420,951

3² × 7 × 13 × 19 × 991

Prime Factor Structure

Factorization String 3^2 × 7 × 13 × 19 × 991

Distinct Prime Factors 5

Square Status No

Abundance Measure Deficient

Total Divisors 48

Divisor Sum (σ) 28,887,040

Proper Divisor Sum 13,466,089

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #15420949 ← → #15420967

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

15,420,951 46,262,854 23,131,427 69,394,282 34,697,141 104,091,424 52,045,712 26,022,856 13,011,428 6,505,714 3,252,857 9,758,572 4,879,286 2,439,643 7,318,930 3,659,465 10,978,396 5,489,198 2,744,599 8,233,798 4,116,899 12,350,698 6,175,349 18,526,048 9,263,024 4,631,512 2,315,756 1,157,878 578,939 1,736,818 868,409 2,605,228 1,302,614 651,307 1,953,922 976,961 2,930,884 1,465,442 732,721 2,198,164 1,099,082 549,541 1,648,624 824,312 412,156 206,078 103,039 309,118 154,559 463,678 231,839 695,518 347,759 1,043,278 521,639 1,564,918 782,459 2,347,378 1,173,689 3,521,068

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