2² × 19 × 61 × 149

Prime Factor Structure

Factorization String 2^2 × 19 × 61 × 149

Distinct Prime Factors 4

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 24

Divisor Sum (σ) 1,302,000

Proper Divisor Sum 611,236

Digit Sum / Digital Root 32 (Root: 5)

Adjacent Primes #690757 ← → #690787

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

690,764 345,382 172,691 518,074 259,037 777,112 388,556 194,278 97,139 291,418 145,709 437,128 218,564 109,282 54,641 163,924 81,962 40,981 122,944 61,472 30,736 15,368 7,684 3,842 1,921 5,764 2,882 1,441 4,324 2,162 1,081 3,244 1,622 811 2,434 1,217 3,652 1,826 913 2,740 1,370 685 2,056 1,028 514 257 772 386 193 580 290 145 436 218 109 328 164 82 41 124

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