2,178,993

3 × 726331

2,178,993 factors as 3 × 726331. Its 4 positive divisors give a proper-divisor sum of 726,335, so this integer is deficient. The Collatz stopping time is 210 steps.

Prime Factor Structure

Factorization String 3 × 726331

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 2,905,328

Proper Divisor Sum 726,335

Digit Sum / Digital Root 39 (Root: 3)

Adjacent Primes #2178991 ← → #2179007

Radix Representation

Decimal	2178993
Binary	1000010011111110110001 (22 bits)
Octal	0o10237661
Hexadecimal	0x213FB1

Divisor Catalog (4)

1 3 726,331 2,178,993

Collatz Trajectory (210 steps to reach 1)

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

2,178,993 6,536,980 3,268,490 1,634,245 4,902,736 2,451,368 1,225,684 612,842 306,421 919,264 459,632 229,816 114,908 57,454 28,727 86,182 43,091 129,274 64,637 193,912 96,956 48,478 24,239 72,718 36,359 109,078 54,539 163,618 81,809 245,428 122,714 61,357 184,072 92,036 46,018 23,009 69,028 34,514 17,257 51,772 25,886 12,943 38,830 19,415 58,246 29,123 87,370 43,685 131,056 65,528 32,764 16,382 8,191 24,574 12,287 36,862 18,431 55,294 27,647 82,942

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