1,817,228

2² × 7 × 64901

1,817,228 factors as 2^2 × 7 × 64901. Its 12 positive divisors give a proper-divisor sum of 1,817,284, so this integer is abundant. The Collatz stopping time is 109 steps.

Prime Factor Structure

Factorization String 2^2 × 7 × 64901

Distinct Prime Factors 3

Square Status No

Abundance Measure Abundant

Analytical Properties

Total Divisors 12

Divisor Sum (σ) 3,634,512

Proper Divisor Sum 1,817,284

Digit Sum / Digital Root 29 (Root: 2)

Adjacent Primes #1817213 ← → #1817261

Radix Representation

Decimal	1817228
Binary	110111011101010001100 (21 bits)
Octal	0o6735214
Hexadecimal	0x1BBA8C

Divisor Catalog (12)

1 2 4 7 14 28 64,901 129,802 259,604 454,307 908,614 1,817,228

Collatz Trajectory (109 steps to reach 1)

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

1,817,228 908,614 454,307 1,362,922 681,461 2,044,384 1,022,192 511,096 255,548 127,774 63,887 191,662 95,831 287,494 143,747 431,242 215,621 646,864 323,432 161,716 80,858 40,429 121,288 60,644 30,322 15,161 45,484 22,742 11,371 34,114 17,057 51,172 25,586 12,793 38,380 19,190 9,595 28,786 14,393 43,180 21,590 10,795 32,386 16,193 48,580 24,290 12,145 36,436 18,218 9,109 27,328 13,664 6,832 3,416 1,708 854 427 1,282 641 1,924

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