2² × 3² × 19 × 1009

Prime Factor Structure

Factorization String 2^2 × 3^2 × 19 × 1009

Distinct Prime Factors 4

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 36

Divisor Sum (σ) 1,838,200

Proper Divisor Sum 1,148,044

Digit Sum / Digital Root 27 (Root: 9)

Adjacent Primes #690143 ← → #690163

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

690,156 345,078 172,539 517,618 258,809 776,428 388,214 194,107 582,322 291,161 873,484 436,742 218,371 655,114 327,557 982,672 491,336 245,668 122,834 61,417 184,252 92,126 46,063 138,190 69,095 207,286 103,643 310,930 155,465 466,396 233,198 116,599 349,798 174,899 524,698 262,349 787,048 393,524 196,762 98,381 295,144 147,572 73,786 36,893 110,680 55,340 27,670 13,835 41,506 20,753 62,260 31,130 15,565 46,696 23,348 11,674 5,837 17,512 8,756 4,378

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