21407

Prime Factor Structure

Factorization String 21407

Distinct Prime Factors 1

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 2

Divisor Sum (σ) 21,408

Proper Divisor Sum 1

Digit Sum / Digital Root 14 (Root: 5)

Adjacent Primes #21401 ← → #21419

1 21,407

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

21,407 64,222 32,111 96,334 48,167 144,502 72,251 216,754 108,377 325,132 162,566 81,283 243,850 121,925 365,776 182,888 91,444 45,722 22,861 68,584 34,292 17,146 8,573 25,720 12,860 6,430 3,215 9,646 4,823 14,470 7,235 21,706 10,853 32,560 16,280 8,140 4,070 2,035 6,106 3,053 9,160 4,580 2,290 1,145 3,436 1,718 859 2,578 1,289 3,868 1,934 967 2,902 1,451 4,354 2,177 6,532 3,266 1,633 4,900

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