2,178,478

2 × 1089239

2,178,478 factors as 2 × 1089239. Its 4 positive divisors give a proper-divisor sum of 1,089,242, so this integer is deficient. The Collatz stopping time is 210 steps.

Prime Factor Structure

Factorization String 2 × 1089239

Distinct Prime Factors 2

Square Status No

Abundance Measure Deficient

Analytical Properties

Total Divisors 4

Divisor Sum (σ) 3,267,720

Proper Divisor Sum 1,089,242

Digit Sum / Digital Root 37 (Root: 1)

Adjacent Primes #2178467 ← → #2178479

Radix Representation

Decimal	2178478
Binary	1000010011110110101110 (22 bits)
Octal	0o10236656
Hexadecimal	0x213DAE

Divisor Catalog (4)

1 2 1,089,239 2,178,478

Collatz Trajectory (210 steps to reach 1)

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

2,178,478 1,089,239 3,267,718 1,633,859 4,901,578 2,450,789 7,352,368 3,676,184 1,838,092 919,046 459,523 1,378,570 689,285 2,067,856 1,033,928 516,964 258,482 129,241 387,724 193,862 96,931 290,794 145,397 436,192 218,096 109,048 54,524 27,262 13,631 40,894 20,447 61,342 30,671 92,014 46,007 138,022 69,011 207,034 103,517 310,552 155,276 77,638 38,819 116,458 58,229 174,688 87,344 43,672 21,836 10,918 5,459 16,378 8,189 24,568 12,284 6,142 3,071 9,214 4,607 13,822

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