15,768,993

3 × 19 × 37 × 7477

Prime Factor Structure

Factorization String 3 × 19 × 37 × 7477

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Total Divisors 16

Divisor Sum (σ) 22,733,120

Proper Divisor Sum 6,964,127

Digit Sum / Digital Root 48 (Root: 3)

Adjacent Primes #15768971 ← → #15769001

1 3 19 37 57 111 703 2,109 7,477 22,431 142,063 276,649 426,189 829,947 5,256,331 15,768,993

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

15,768,993 47,306,980 23,653,490 11,826,745 35,480,236 17,740,118 8,870,059 26,610,178 13,305,089 39,915,268 19,957,634 9,978,817 29,936,452 14,968,226 7,484,113 22,452,340 11,226,170 5,613,085 16,839,256 8,419,628 4,209,814 2,104,907 6,314,722 3,157,361 9,472,084 4,736,042 2,368,021 7,104,064 3,552,032 1,776,016 888,008 444,004 222,002 111,001 333,004 166,502 83,251 249,754 124,877 374,632 187,316 93,658 46,829 140,488 70,244 35,122 17,561 52,684 26,342 13,171 39,514 19,757 59,272 29,636 14,818 7,409 22,228 11,114 5,557 16,672

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